Make madder and nettle perfume (7)
I believe the answer is:
incense
I believe this is a double definition.
'make madder and nettle' is the first definition.
'perfume' is the second definition.
(incense is a kind of perfume)
(Other definitions for incense that I've seen before include "can cause strong emotion" , "Substance burning in a censer" , "Enrage greatly" , "Perfume - madden" , "Material with fragrant fumes" .)