Dove's belief (8)
I believe the answer is:
pacifism
'dove's belief' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pacifism that I've seen before include "A rejection of war" , "The desire to avoid war" , "The belief that disputes should be settled peacefully" , "The doctrine that no violence is justifiable" , "The doctrine that all violence is unjustifiable" .)