Flavouring used for fans (7)
I believe the answer is:
saffron
'flavouring' is the definition.
(I know that saffron is a type of flavouring)
'used for fans' is the wordplay.
'used' indicates an anagram.
'for'+'fans'='forfans'
'forfans' with letters rearranged gives 'SAFFRON'.
(Other definitions for saffron that I've seen before include "- - Walden" , "Culinary spice" , "The stigma" , "Type of crocus" , "Flavouring from a kind of crocus" .)