Limits clothing accessories, say (4)
I believe the answer is:
caps
'limits' is the definition.
(capping is a kind of limiting)
'clothing accessories say' is the wordplay.
'clothing' becomes 'cap' (cap is a kind of clothing).
'accessories say' becomes 's' (I can't explain this - if you can you should give a lot more credence to this answer).
'cap'+'s'='CAPS'
Can you help me to learn more?
(Other definitions for caps that I've seen before include "Bottle tops" , "Head-coverings" , "Coverings, for heads say" , "Coverings for heads or bottles" , "Headgear for international players" .)