Where the ancients hadn't the right to make sherbet? (6)
I believe the answer is:
thebes
'where the ancients hadn't the right to make sherbet?' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
This is all the clue.
Can you help me to learn more?
(Other definitions for thebes that I've seen before include "One of the oldest Greek cities" , "Ancient Nile city" , "Ancient city of upper Egypt" , "place in Greece" , "Greek city of Oedipus" .)