Remove a garment (5)
I believe the answer is:
shift
I believe this clue is a double definition.
'remove' is the first definition.
(thesaurus)
'a garment' is the second definition.
(shift is a kind of garment)
(Other definitions for shift that I've seen before include "eat quickly" , "Change position" , "Dislodge" , "Key to move between lower- and upper-case" , "Move (fast!)" .)