Thanks, Mike! Yes, I found the clue for ERNE particularly pleasing as well, although I think the one I was most proud of was MILORD. Thanks for solving!
When your boss needs that thing you were supposed to do yesterday (but it can wait until you finish this crossword)
21A
Musical featuring the songs "Money, Money, Money" and "Another Shot of Whiskey"?
24A
Sea 68-Across
25A
Unit represented by Omega
26A
Largest labor union in the US
27A
Gender-bent villain of "The Three Musketeers"?
29A
80, for Dr. Fauci (at least, as of this puzzle's publication)
30A
Event for good-natured ridicule, or something you might eat there
32A
Make room for plant growth
35A
Manual reader (or maybe not)
37A
Musical featuring the songs "Too Darn Hot" and "Beautiful Road"?
43A
Luxury subsidiary of Volkswagen
46A
Alphabet with 22 letters: Abbr.
47A
Powerful hit in baseball
48A
Bread, for example
50A
Solid ____ rock
52A
It eats cards (well, it's not supposed to)
53A
Not the same thing as gender
54A
Hobbs' homeland in the "Fast & Furious" franchise
55A
Central location in "The Hunger Games"
57A
Omar of "House"
60A
Musical featuring the songs "Be Prepared" and "1950"?
66A
Vape pen
67A
Five-time Emmy winner Roberts
68A
Soaring bird of prey
69A
"Let 'er ____!"
72A
"Sense and Sensibility" director Ang
74A
Feminine side
75A
Café-____ (alternative to café noir)
76A
Style for Pentatonix or The Whiffenpoofs
80A
Ceremonial splendor
82A
Icelandic epic (first two letters are "Actor Helms" and last two letters are "Prosecutor, for short")
83A
Musical featuring the songs "Put On Your Sunday Clothes" and "9 to 5"?
86A
Job for Miss Marple
87A
Drips, as a faucet
88A
Drab color
92A
____ feeling (instinct)
93A
Choose
97A
20-20 or 50-50
99A
Thanksgiving mo.
100A
New York theater award (not TONY, the other one - you're welcome)
102A
Musical featuring the songs "I Could've Danced All Night" and "Poker Face"?
106A
Opposite of bull, in a way
107A
"C'est ____!" ("It's too much!")
108A
Highest rank of English nobles until 1337
109A
Shakespearean "soon"
110A
Wight or Man
111A
____-CoV-2
112A
Roused
113A
Comes together
Down
1D
____-Leste
2D
State whose nickname, oddly, is not The Potato State (can't imagine why they went with Gemstone instead)
3D
One of only two English words that rhyme with EMMA
4D
Scottish cap
5D
Showed up
6D
Aerials scrambled Spanish get together (this is a cryptic clue using a UK term cluing a Spanish word, so... I'm sorry - just anagram AERIALS until it fits)
7D
Mauna ____ (not KEA, the other one - you're welcome)
8D
Favorite accessory of the Eleventh Doctor
9D
DC hockey player, or just DC
10D
Grueling grad school exam
11D
Palindromic man's name
12D
Bygone ruler
13D
Issa of "Insecure"
14D
Gal Gadot and Natalie Portman, for example
15D
Tree that grows in salt water (trees are amazing, people!)
16D
Fencing blade
22D
Not pro
23D
All over the place
28D
74-Across and yang, for example
31D
Piece of equipment for Lindsey Vonn
33D
Start out (on)
34D
August meteor
36D
Country next to Leb.
38D
"Who does ____ think ____ is?"
39D
Twin of Tamera
40D
Walks into
41D
Largo and allegro
42D
"Oedipus ____" (opera by Igor Stravinsky, or more amusingly, a song by Tom Lehrer)
43D
Kind of prof.
44D
State where the golden spike was driven
45D
Judi Dench or Maggie Smith, for example
49D
Nonclerical
51D
Pester
55D
Character in "Measure for Measure" or "The Comedy of Errors"
56D
"Unless the enemy has studied his ____... which I have!" (Inigo Montoya quip in "The Princess Bride")
58D
Beginning to -monia or -matic
59D
Triangle with no two sides the same length
61D
Well-____ machine
62D
Common landscaping tree
63D
"My stars!'
64D
Tried to score a run, maybe
65D
____ record
69D
Stadium cheer
70D
They may be shaped like Han Solo in carbonite
71D
What many apartments in New York City are not
73D
Building addition
75D
Fitting
77D
Sometimes accompanier of "thx!" in a text
78D
Belonging to Edgar Allan
79D
WRITTEN LIKE THIS (WITH "IN")
81D
Iron Man, to Peter Parker
84D
Brand for some coolers and drinkware
85D
Heed
89D
Utterly ridiculous
90D
The namesake in Jhumpa Lahiri's "The Namesake"
91D
Lily Potter (née ____)
92D
Cold desert
94D
Performers of CPR
95D
Constellation that contains Vega
96D
Get an ____ effort
98D
Word before hands or chatter
101D
"Able was I ____ I saw Elba" (well-known palindrome)