Wine tasting feature (4)
I believe the answer is:
asti
'wine' is the definition.
(Italian wine)
'tasting feature' is the wordplay.
'feature' indicates the answer is hidden within the clue (I've seen 'featuring' mean this).
'ASTI' is hidden within 'tasting'.
(Other definitions for asti that I've seen before include "Sparkling white wine" , "It's a (anag) - wine" , "Piedmont wine city, SE of Turin" , "Italian wine - (then change a letter for ...)" , "- spumante, It. wine" .)