Nevada city famed for casinos (3,5)
I believe the answer is:
las vegas
'nevada city famed for casinos' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for las vegas that I've seen before include "entertainment centre" , "Nevadan city" , "place in America" , "US gambling city" , "Gambling city in Nevada, USA" .)