A coloured drink (4,3)
I believe the answer is:
pink gin
'a coloured drink' is the definition.
'pink gin' can be an answer for 'drink' (I've seen this before). I am not sure about the 'a coloured' bit.
'coloured drink' is the wordplay.
'coloured' becomes 'pink' (similar in meaning).
'drink' becomes 'gin' (gin is an alcoholic drink).
'pink'+'gin'='PINK GIN'
Can you help me to learn more?
(Other definitions for pink gin that I've seen before include "Angostura-flavoured drink" , "Drink with 9" , "Alcoholic drink" , "Kingpin (anag.)" , "Geneva and bitters" .)