Wine held by barman is termed uplifting (7)
I believe the answer is:
retsina
'wine' is the definition.
(type of Greek wine)
'held by barman is termed uplifting' is the wordplay.
'held by' indicates a hidden word.
'uplifting' shows that the letters should be reversed in order.
'anister' is hidden within 'barman is termed'.
'anister' back-to-front is 'RETSINA'.
(Other definitions for retsina that I've seen before include "Oily-tasting Greek white wine" , "Greek drink" , "Flavoured Greek white wine - nastier brand" , "S European wine" , "Greek resin-flavoured wine" .)