Recent change of heart (6)
I believe the answer is:
centre
'heart' is the definition.
(I know that heart can be written as centre)
'recent change' is the wordplay.
'change' is an anagram indicator.
'recent' with letters rearranged gives 'CENTRE'.
'of' is the link.
(Other definitions for centre that I've seen before include "Middle, hub" , "The point equidistant from everywhere" , "Point equidistant from all other points" , "and this may follow 26, 25 [LEFT RIGHT]" , "Middle, core" .)