A letter from Greece opposing Italian import perhaps? (7)
I believe the answer is:
chianti
'italian import perhaps?' is the definition.
I can't judge whether this definition defines the answer.
'a letter from greece opposing' is the wordplay.
'a letter from greece' becomes 'chi' (letter of the Greek alphabet).
'opposing' becomes 'anti' (prefix meaning 'opposing').
'chi'+'anti'='CHIANTI'
Can you help me to learn more?
(Other definitions for chianti that I've seen before include "I can hit for popular Italian wine" , "Italian wine - mountain range" , "Italian offering" , "European wine" , "Wine produced in Tuscany" .)