Limb stuck in man's piece of clothing (7)
I believe the answer is:
garment
'piece of clothing' is the definition.
(I've seen this in another clue)
'limb stuck in man's' is the wordplay.
'limb' becomes 'arm' (arm is a kind of limb).
'stuck in' indicates putting letters inside.
'man' becomes 'gent' (gent is a kind of man).
'arm' going within 'gent' is 'GARMENT'.
(Other definitions for garment that I've seen before include "Perhaps shift" , "An article of clothing (7)" , "dress, perhaps" , "Raiment" , "Piece of clothing" .)