Capsicum season (6)
I believe the answer is:
pepper
I believe this is a double definition.
'capsicum' is the first definition.
('pepper' can be a synonym of 'capsicum')
'season' is the second definition.
(thesaurus)
(Other definitions for pepper that I've seen before include "shower" , "Pungent condiment" , "Hot-tasting spice" , "Name of Band Sergeant" , "it may be black or white" .)