Crossword Genius

Surrey town: agree it’s evolving (7)

Ross

I believe the answer is:

reigate

I'm a little stuck... Click here to teach me more about this clue!

'surrey town' is the definition.
(I've seen this before)

'agree it's evolving' is the wordplay.
'agree it' can be anagrammed to 'REIGATE'.
Though, I'm not sure how this is indicated.

Can you help me to learn more?

(Other definitions for reigate that I've seen before include "place in Surrey" , "English town" , "Surrey town" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app