Mean to change heading (4)
I believe the answer is:
name
'heading' is the definition.
'mean to change' is the wordplay.
'to change' is an anagram indicator.
'mean' with letters rearranged gives 'NAME'.
(Other definitions for name that I've seen before include "Reputation; identify" , "By which one is known" , "Famous person; identify" , "Appoint - famous person" , "Famous person; reputation" .)