Primitive or brutal (8)
I believe the answer is:
barbaric
This clue is a double definition.
'primitive' is the first definition.
(thesaurus)
'brutal' is the second definition.
(I've seen this before)
(Other definitions for barbaric that I've seen before include "Like 24 [BRUTE]" , "Wild and savage" , "lacking in refinement" , "Uncivilized" , "Cruel and brutal" .)