Pawn (4-3)
'pawn' is the definition.
(hock can mean to pawn an item at a pawnbroker's)
This is the entire clue.
(Other definitions for hock that I've seen before include "Dry white wine" , "Dry Rhine wine" , "Dry wine; joint; pawn" , "German white wine from Rhineland" , "Buy property, say" .)
'pawn' is the definition.
(synonyms)
This is all the clue.
(Another definition for cat's-paw that I've seen is " One used by another".)