Fruit sounds topical (7)
I believe the answer is:
currant
'fruit' is the definition.
(currant is a kind of fruit)
'sounds topical' is the wordplay.
'sounds' indicates a 'sounds like' (homophone) clue.
'topical' becomes 'current' (similar in meaning).
'current' sounds like 'CURRANT'.
(Other definitions for currant that I've seen before include "Small dried fruit" , "Something ideal for jamming" , "The berry sounds electric" , "Edible berry, red or black" , "Product of grape" .)