Sampling wine perhaps, it's tipped back passing flavour around (7)
I believe the answer is:
tasting
'sampling wine' is the definition.
(tasting wine)
'perhaps it's tipped back passing flavour around' is the wordplay.
'perhaps' indicates anagramming the letters.
'tipped back passing flavour' becomes 'tang' (I can't explain this - if you can you should give a lot more credence to this answer).
'around' is an insertion indicator.
'its' anagrammed gives 'sti'.
'sti' going within 'tang' is 'TASTING'.
Can you help me to learn more?
(Other definitions for tasting that I've seen before include "Savouring" , "event with wine" , "Sampling (food)" .)