Belief is embraced by those people (6)
I believe the answer is:
theism
'belief' is the definition.
(theism is a kind of belief)
'is embraced by those people' is the wordplay.
'embraced by' is an insertion indicator.
'those people' becomes 'them' (I've seen this before).
'is' placed within 'them' is 'THEISM'.
(Other definitions for theism that I've seen before include "The doctrine or belief in the existence of a God or gods" , "Belief in a deity" , "Belief in a creator" , "Belief in existence of a God revealed to man" , "of faith" .)