Resents changes incorporating aim for compassion (10)
I believe the answer is:
tenderness
'compassion' is the definition.
(I've seen this before)
'resents changes incorporating aim' is the wordplay.
'changes' is an anagram indicator.
'incorporating' is an insertion indicator.
'aim' becomes 'end' (I've seen this before).
'resents' is an anagram of 'terness'.
'terness' enclosing 'end' is 'TENDERNESS'.
'for' acts as a link.
(Other definitions for tenderness that I've seen before include "Heart" , "Gentle quality" , "sore?" , "Compassion" , "Gentleness, sensitivity" .)