A tropical fruit (9)
I believe the answer is:
pineapple
'a tropical fruit' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pineapple that I've seen before include "bomb" , "that might go off?" , "Fruit (tree and fruit!)" , "Fruit grown on ground" , "Juicy tropical fruit or slang hand grenade" .)