Greek character opposed to Italian wine (7)
I believe the answer is:
chianti
'italian wine' is the definition.
(I've seen this before)
'greek character opposed' is the wordplay.
'greek character' becomes 'chi' (letter of the Greek alphabet).
'opposed' becomes 'anti' (similar in meaning).
'chi'+'anti'='CHIANTI'
'to' is the link.
(Other definitions for chianti that I've seen before include "Popular dry red wine of Tuscany" , "Dry red Italian wine" , "I can hit for popular Italian wine" , "I can hit (anag) - alcoholic drink" , "Tuscan red wine" .)