Sweet cold wine lacking finish (4)

I believe the answer is:
choc
'sweet' is the definition.
(I've seen this before)
'cold wine lacking finish' is the wordplay.
'cold' becomes 'C' (eg on taps).
'wine' becomes 'hock' (type of wine).
'lacking finish' means to remove the last letter.
'hock' with its final letter taken off is 'hoc'.
'c'+'hoc'='CHOC'
(Another definition for choc that I've seen is " Sweet (abbr)".)
I've seen this clue in The Times.
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