American mammal (5)
(Other definitions for skunk that I've seen before include "American animal notorious for its bad smell" , "Mammal using scent as a weapon" , "Animal that can eject a foul-smelling fluid" , "Animal with foul scent" , "Vile-smelling animal" .)
'american mammal' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for raccoon that I've seen before include "US nocturnal mammal" , "US ring-tailed mammal" , "Furry grey forest mammal, black-banded on face and tail" , "Furry American mammal" , "North American animal with black mask and ringed tail" .)