Adjustable accessory has label touching clothing (4)
I believe the answer is:
belt
'adjustable accessory' is the definition.
(adjustable item of clothing)
'has label touching clothing' is the wordplay.
'clothing' says the answer is hidden in the clue (the solution is covered or clothed by the clue).
'BELT' is hidden in the letters of 'has label touching'.
(Other definitions for belt that I've seen before include "See 18" , "District" , "drive at speed" , "Race" , "Sign of rank in karate" .)