Fighting axe (8)
I believe the answer is:
tomahawk
'fighting axe' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tomahawk that I've seen before include "Traditional North American fighting axe" , "Hatchet used by North American Indians" , "Scalping weapon" , "War hatchet once wielded by native Americans" , "American Indian axe" .)