Chilli powder (7)
I believe the answer is:
cayenne
'chilli powder' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for cayenne that I've seen before include "Kind of pepper" , "Capital of French Guiana - spicy red pepper" , "Spice from chillies" , "something spicy" , "Type of pepper" .)