What’s Cookin’?
by Kegler

The unclued entry at 20 Across defines the other eight unclued entries. 12A is an unusual word.

What’s Cookin’? grid

Across
1Dash around large tree (3)
9Reportedly stun for a period of time (4)
11Fuss about a soldier’s slow pace (6)
12One out of sympathy with the times as to oil, unfortunately (7)
13Perplexing state of affairs, with crowd circling hospital area (6)
15Sops soft cheeses, clutching bit of bread (6)
16Jack provided ultimately brief moment (4)
17Prepare a tape for reuse before taking a second (5)
19Detective story’s two Hindu nuts (8)
20See instructions
23Travels with newlyweds after sixth of December (5)
24Actor Robert ironed weaves (2,4)
27Song in a girl’s heart (3)
28Energy shot, retreat (3)
29Satchel, Gabriel and child returning (4,3)
32In recession, run into anger about one union (8)
33Woody’s son Marlon ignoring boundaries (4)
34Everyone recalled catching commencement of oncoming musical siren (4)
35Oracles admitting no scornful expressions (6)
36Sounds of protest from the old records (5)
Down
1Rising tendency for change (4)
2Earl’s fancy surgical instrument (5)
3Poi may spread Mr. Magoo’s ailment (6)
4Conscious of sense of wonder about Alaska (5)
5Guy enthralls American Indians with white bird (4,4)
6Man interrupts fight over grades (5)
7Winding road Ed loved (6)
8A tool that squeezes corruption, we hear (4)
10Hick or no, Rocky's a noted Russian chess player (8)
14Without carbon, zinc and nickel start to affect flowering plant (6)
18Initially, Eliot Ness flipped over German city (5)
21Eccentric bald old stranger (7)
22Tin alloy tabouret we put back inside (6)
25Theater district boosting Irish singer (6)
26Competing for hollow victory, in general (5)
30Go back over electrical engineer’s S-shaped molding (4)
31Crow’s feather finally put into suitcase (4)
33Grill a steak’s outer surfaces (3)

Solution