Wine creates bewilderment -- head goes (4)
I believe the answer is:
hock
'wine' is the definition.
(I know that hock is a type of white wine)
'bewilderment head goes' is the wordplay.
'bewilderment' becomes 'shock'.
'head goes' means to remove the first letter.
'shock' with its initial letter taken off is 'HOCK'.
'creates' acts as a link.
(Other definitions for hock that I've seen before include "Pawn < some ham" , "Leg joint on horse e.g." , "Dry white wine" , "Pawn; white wine" , "Dry wine; joint; pawn" .)