City north of Carson City (4)
I believe the answer is:
reno
'city north of carson city' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for reno that I've seen before include "Nevada marriage and divorce centre" , "Divorce capital of Nevada" , "Nevada city of Nero" , "City in Nevada known for gambling and easy marriage/divorce" , "US divorce centre" .)