District of Monaco which includes the Place du Casino (5,5)
I believe the answer is:
monte carlo
'district of monaco which includes the place du casino' is the definition.
The definition suggests a singular noun which matches the answer.
This is all the clue.
Can you help me to learn more?
(Other definitions for monte carlo that I've seen before include "Swanky part of France" , "Riviera resort" , "Gamblers' resort" , "place of speculation" , "Town near Nice" .)