Wine label word (3)
I believe the answer is:
cru
'wine label word' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for cru that I've seen before include "French vineyard (and the wine from it)" , "Vineyard or group of them in France" , "French vineyard or group" , "Vintage, as applied to wine" , "Source of alcohol" .)