Cal State city (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
chico
'cal state city' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for chico that I've seen before include "A Marx brother" , "One of Groucho's brother" , "Eldest of the Marx Brothers" , "One of the Marx Brothers" .)