Some of the dole money grows on a tree! (5)
I believe the answer is:
'tree' is the definition.
(lemon is a kind of tree)
'some of the dole money grows' is the wordplay.
'some of' indicates a hidden word.
'LEMON' can be found hidden inside 'dole money grows'.
'on a' is the link.
(Other definitions for lemon that I've seen before include "Fruit; sort of grass, sole", "A fruit; a worthless item", "Fruit squeezed on Pancake Day?", "certainly not a plum!", "Citrus fruit (is it the answer?)".)