Sprinkle with chilli? (6)
I believe the answer is:
pepper
I believe this clue is a double definition.
'sprinkle' is the first definition.
(thesaurus)
'chilli?' is the second definition.
(chilli is a kind of pepper)
'with' acts as a link.
(Other definitions for pepper that I've seen before include "Condiment or vegetable" , "Name of Band Sergeant" , "Pungent spice" , "Condiment - discharge shot liberally" , "Dot" .)