60% of bars across France produced this wine (6)
I believe the answer is:
barsac
'france produced this wine' is the definition.
(Barsac is a French wine)
'60% of bars across' is the wordplay.
'BARSAC' is hidden in amongst the letters.
But, I am not sure how the hidden word is indicated.
(Other definitions for barsac that I've seen before include "French wine" , "some from France" , "Scarab (anag) - sweet white wine" , "Sweet Bordeaux wine" , "18 [WINE]" .)