Savagely violent (6)
I believe the answer is:
brutal
'savagely violent' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for brutal that I've seen before include "Rough and cruel" , "Callous" , "Harsh, merciless" , "Disposed to inflict pain" , "Cruel and unfeeling like an animal" .)