Wine, some brought back from Azerbaijan, is terrible (7)
I believe the answer is:
retsina
'wine' is the definition.
(type of Greek wine)
'some brought back from azerbaijan is terrible' is the wordplay.
'some brought back' is a reversal indicator.
'from' indicates the answer is hidden within the clue.
'anister' is hidden in the letters of 'azerbaijan is terrible'.
'anister' back-to-front is 'RETSINA'.
(Other definitions for retsina that I've seen before include "Greek white wine flavoured with resin" , "S European wine" , "Nastier (anag) - Greek wine" , "Type of Greek wine" , "Greek wine - nastier sort" .)