Won't change address (4)
I believe the answer is:
town
'address' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'won't change' is the wordplay.
'change' indicates anagramming the letters.
'wont' is an anagram of 'TOWN'.
Can you help me to learn more?
(Other definitions for town that I've seen before include "Conurbation" , "See 1" , "eg Yeovil" , "What revellers paint red" , "Carmathen?" .)