Is It Over Yet?
by Kegler

Six of the answers contain “8D” and must be modified before entry.  Two other entries must be treated analogously.
5D is special for 8D 21A.

Is It Over Yet? grid

Across
1Pair of shareholders collecting obscene profits; they might get hooked (2 wds)
8Good at imitating and staring
13Run into Peg's trap
14Development of region: raze, and put in new structure
16Dog workers capturing, finally, clever Spot
17Five go hang around with painter (2 wds)
18For example, Earhart's chopper involving bizarre trivia
20Halt spinning tops
21See instructions
23Engineer goes “Hmm...large amounts of resistance”
26Oh God! Sue converted place for those in trouble
29A vehicle entering tardily is priced separately (3 wds)
31Actress Ingrid originally seen in “The Cross”
32Put back about half of lily flower
33Starts to announce happening on yacht!
34Ranks those lacing their shoes, perhaps
35Ridiculously draw lots for final say-so (2 wds)
36Leave weapon for young bird
Down
1Attach backing pieces
2Ever up, surprisingly, for a showing of movie scenes
3Take the strain off truck’s second broken axle
4The one identified heartless threat
5See instructions
6Provoke anger about strange trait
7Brace of horses finally dislodged mason’s implement
8See instructions
9Amazingly eager to see eye to eye
10Cover the surface of quiet street
11Confusing hints about last of common fractions
12OK, help snag convertible sources of retirement income (2 wds)
15Gates acquires remodeled hogan for place to play games (2 wds)
19Wrap up shredded wheats
22Opening for Iris's student
23In chess, defeat partner
24Fools pass out
25Mad about taste of exotic honey drink
27Eventually building armies' spirits
28Merit attention and remuneration, ultimately
30Drag seabird most of the way back

Solution