Hit with fashion accessory (4)
I believe the answer is:
belt
This clue could be a double definition.
'hit' is the first definition.
(belting is a kind of hitting)
'fashion accessory' is the second definition.
'belt' can be an answer for 'accessory' (belt is a kind of accessory). I'm unsure of the 'fashion' bit.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for belt that I've seen before include "Smack" , "Karate insignia of rank" , "Sash" , "Zone - hit" , "Hit - trousers' support" .)