Pristine sweet (4)
I believe the answer is:
mint
This clue is a double definition.
'pristine' is the first definition.
(I've seen this in another clue)
'sweet' is the second definition.
(I know that mint is a type of candy)
(Other definitions for mint that I've seen before include "Sweet - in perfect condition" , "Herb - place where money is coined" , "Culinary herb" , "fortune" , "sweet herb" .)