Sweet carbonated drink (8)
I believe the answer is:
lemonade
'sweet carbonated drink' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for lemonade that I've seen before include "something refreshing" , "Lead me on to the strange drink" , "(Usually) fizzy drink" , "Flavoured mineral drink" , "Ale demon (anag)" .)