Spectator 2225

[Matakari]

Some hints for the following please!

21a Molluscs in rotary motors(8): ???????S
28a Pedestals decay among trees(8): ?????O??
39a Dry retreat containing a desk(10): ???S?S????
6d Muddled start reviewed(7): ?A?V???
8d Crime not earning mark of honour(8) ???O???? ( Thinking ACCOLADE)

Many thanks in advance!

[kayakamina]

Well they did tell me that once I had passed the four score years
I would slow down!

[Matakari]

Many thanks, Shaneytstar and Kayakamina!

[Matakari]

I am seeking HINTS only for the following, please!

12d Absolute monster playing(7): ?L???R?
20d Relax rule nun checked(8): ???T?E
17d Prepare urgent trial(6): ?T??R?
32d Big tree lumberjacks tackle(5): ??GER

Many thanks in advance!

[kayakamina]

Jumble of letters less 1

13d er playin
20d le nun chec
17d ent tria
32d g tree l

[Matakari]

Thanks, Kayakamina! Sorry for mixing up the clue numbers!