Savage, brutal (7)
I believe the answer is:
vicious
This clue is a double definition.
'savage' is the first definition.
(I know that savage can be written as vicious)
'brutal' is the second definition.
(I know that brutal can be written as vicious)
(Other definitions for vicious that I've seen before include "Malicious - degenerate" , "Cruel, wicked" , "Brutal, savage and dangerous" , "Deliberately cruel or violent" , "Deliberately harmful and savage" .)