One trading in Derby or in Leicester? (12)

I believe the answer is:

cheesemonger

'one trading in derby or in leicester?' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

(Another definition for cheesemonger that I've seen is " Wensleydale retailer?".)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.