Fruit drinks very quietly brought in (6)
I believe the answer is:
apples
'fruit' is the definition.
(I've seen this before)
'drinks very quietly brought in' is the wordplay.
'drinks' becomes 'ales' (ale is a kind of drink).
'very quietly' becomes 'pp' (musical abbreviation for pianissimo).
'brought in' means one lot of letters goes inside another.
'ales' going around 'pp' is 'APPLES'.
(Other definitions for apples that I've seen before include "Stairs (Cockney rhyming slang)" , "Crisp fruits" , "What you make cider from" , "PS, leap up for the fruit" , "Crispy fruit" .)