Incense, madden (6)
I believe the answer is:
enrage
I believe this is a double definition.
'incense' is the first definition.
(I've seen this before)
'madden' is the second definition.
(I've seen this before)
(Other definitions for enrage that I've seen before include "get annoyed" , "Make violently angry" , "Incense" , "put in a stir?" , "Madden, make very angry" .)