Mixer (6,5)
(Other definitions for bitter lemon that I've seen before include "Soft citrus drink" , "Tart soft drink" .)
(Another definition for bitterlemon that I've seen is " Non-alcoholic drink".)
'mixer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for soda that I've seen before include "kind of water" , "pressurised liquid" , "Alkaline substance used in cleaning, drinks etc" , "Fizzy drink - chemical compound" , "for use with whisky?" .)
'mixer' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tonic water that I've seen before include "Aerated quinine drink" , "something for your gin?" , "Accompaniment to gin" , "Non-alcoholic drink" , "Mixer" .)