Perfect fortune (4)
I believe the answer is:
mint
This clue is a double definition.
'perfect' is the first definition.
(I've seen this before)
'fortune' is the second definition.
(thesaurus)
(Other definitions for mint that I've seen before include "A bomb" , "Plant - in perfect condition" , "lots of money" , "Flavour of the money-maker?" , "There's a lot of money" .)