Wine cocktail (3)
I believe the answer is:
kir
'wine cocktail' is the definition.
(type of cocktail)
This is the entire clue.
(Other definitions for kir that I've seen before include "Drink of white wine and cassis" , "Mixture of white wine and cassis" , "White wine with blackcurrant syrup" , "Cassis-flavoured wine" , "Blackcurrant drink" .)