Cuff, sock or belt (4)
I believe the answer is:
blow
This clue is a triple definition!
'cuff' is the first definition.
(I've seen this before)
'sock' is the second definition.
(thesaurus)
'or' is a link.
'belt' is the third definition.
(thesaurus)
(Other definitions for blow that I've seen before include "Use pipe for" , "Powerful stroke; completely bungle (an opportunity)" , "Blast" , "haymaker, perhaps" , "Waste" .)