Fruit pop followed by whisky (5)
I believe the answer is:
papaw
'fruit' is the definition.
(papaw is a kind of fruit)
'pop followed by whisky' is the wordplay.
'pop' becomes 'papa' ('papa' can be a synonym of 'pop').
'followed by' means one lot of letters go next to another.
'whisky' becomes 'w' (phonetic alphabet: alpha, bravo, charlie etc.).
'papa'+'w'='PAPAW'
(Other definitions for papaw that I've seen before include "Papaya" , "fruit tree" , "seedy article" , "Custard apple" .)