Aniseed-flavoured spirit (4)
I believe the answer is:
ouzo
'aniseed-flavoured spirit' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for ouzo that I've seen before include "booze?" , "Strong Greek drink" , "Strong Greek spirit" , "Greek aniseed liqueur" , "Greek aniseed-flavoured spirit" .)