Fellow leaves one city for another (7)
I believe the answer is:
chester
'fellow' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for chester that I've seen before include "Walled city on the river Dee" , "See 8" , "County town south of Liverpool" , "County town of northwest England" , "Walled English city" .)