Means of changing titles (5)
I believe the answer is:
names
'titles' is the definition.
(I've seen this before)
'means of changing' is the wordplay.
'means' can be anagrammed to 'NAMES'.
Though, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for names that I've seen before include "Some people drop these to sound important" , "celebrities" , "Paul, Pat, John" , "Heroes" , "identification" .)