Financial indicator that indexes the relative strength of a commodity
2D
Gender-free French neopronoun. Alternative to the gender-specific pronouns elle and il. It has been adopted by the Le Robert dictionary but is not officially accepted by the Académie Française. (78D bless Wikipedia!)
3D
Year Boleslav I, duke of Bohemia, signs a peace treaty with King Otto I of the East Frankish Kingdom. (Or XXV times XVIII for those of you who are better at math than at history)
4D
Person who will sell you a tethered heavier than air flying device
5D
What onions do
6D
First to words to a question concerning the status of the other person
7D
Brazil's primary tourist destination
8D
A change in the Wikipedia page about teen-aged Clark Kent's girlfriend
9D
It distinguishes a bathhouse from a bathouse
10D
Fished for that fish with the narrow jaw
11D
Winter weather hazard
12D
Took an oath
13D
Make a mistake
14D
Protagonist of Sena Jeter Naslund's "Ahab's Wife: Or, the Star-Gazer"
15D
"As an afterthought to this letter, I urge you to urinate"... but in only three-letters
17D
Nope
23D
bi-, physi-, zo-, anthrop-, and others
24D
Defeat soundly
25D
To coat with an elastic material in England
26D
In an uncommon manner
28D
Music with a strong beat
30D
Mark your calendars; the new store will be ------- -- two weeks. (alternative jokey clue: Label on a jar that must be unsealed only while submerged in martini liquor)
31D
Where to put your trash
32D
Munch on
34D
"Shall we take Hwy B?" "No, let's take -- -. After all, that is Sanskrit for 'divine order' or 'logos'. I just made a meta where the theme was 'logos' so I'm taking it as a sign"
39D
Gp. that has Senators, Devils, and Penguins
41D
Chop off
44D
Type of musical piece that will forever be associated with fugues due to Bach's most famous work for organ
46D
What you do when you leave someone's house
48D
Suffer
50D
The Way
53D
Harsh criticism
54D
Way or bearing
55D
Fabricate a story
57D
--- Lanka
59D
Pained
62D
Actor Daniel --- Kim
64D
Entertainment for the armed forces
67D
My grandmother hated this article of clothing. "Why would anyone willingly make themselves a billboard" she'd say. She said lots of other things but I'll save them for another crossword.
69D
"Shall we call the baby Victor, or Virgil, or Valdemort, or .... ?" No, none of those. I don't like - -----"
71D
Theme for a meta last year that bothered me as it gave many hints for the last name but no hints for the first name; Betty
75D
Ozone depleter
77D
Elemento de número atómico 79 y símbolo químico "Au"
78D
Deity
79D
Before
80D
More, in Cuba
82D
You can gauge a crossword's intended audience by whether the clue for this entry talks about southern California winds, or the movie "Knives Out"
83D
If you add it to itself you get its square (no, it isn't zero)