Hit — item of clothing (4)
I believe the answer is:
sock
This clue is a double definition.
'hit' is the first definition.
(I know that sock is a more specific form of the action hit)
'item of clothing' is the second definition.
(I've seen this before)
(Other definitions for sock that I've seen before include "Item of footwear" , "Strike, hose" , "One going into Oxford maybe" , "This partly protects member" , "bash" .)