10 Charade and Anagram – SO (therefore) and anagram (like a tailor, stitching and sewing back together) of SWEAR. This is based on the adage “You can't make a silk purse out of a SOW'S EAR”
12 Double Definition (what it looks like when capitalized and 3 examples.) An iamb is a metrical foot in poetry “short/long”.
13 Letter subtraction – (w)HERE and (Baltimore O's)WEGO
16 Anagram and letter selection – EL + VISPRE (anagram of VIPERS) before SiLvErY
19 Charades – APP + (l)EAR
20 Letter insertion – D(R)ONE
23 Letter subtraction – (t)IM + (w)A GONER
24 Letter addition – FL(A)Y
27 Charades – P (U(nusua)L + PER) A
28 Charades – MEL + ISSA
29 Letter removal and reversal (d)OYEN reversed
30 Charades – ST + ARCHIE + ST
Down
1 First letters – from Every to Reality
2 Anagram – VOYEUR + (t)O + M
3 Rebus interpretation of BINARY – B in ARY (It stands for Raffel Brothers.)
4 Palindrome – BE (from IS) + EB
5 Charades – DI (S + PENS) ARY
7 Charades – THEME + T
8 Homophone (tell) – BURRO to BURROW
11 Homophone (It's announced) – WEAK ENDS to WEEKENDS (Although I loved both.)
14 Homophone (roll call) AYES OPPOSE to I SUPPOSE
15 Charades with reversal – IRRE (LEVAN) T We all have one to show we were born.
17 Charades – COAL + shES + niCE
18 Spoonerism – FAIRY VAST to VERY FAST
21 Double definition – PIPPIN Took is a major character form LOTR. I am a nerd.
22 Letter removal – FA(c)ULTY
25 Reversal (as in going up in a down clue) – RIME (frost) is jacked up