Nominally American city? (7)
I believe the answer is:
chester
This could be a double definition.
'nominally american' is the first definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'city?' is the second definition.
(Chester is an example)
Can you help me to learn more?
(Other definitions for chester that I've seen before include "Tetchy cries (anag)" , "historic city" , "Walled county town" , "County town on the river Dee" , "County town south of Liverpool" .)