Possible Clues:

• Sparta, for one
• Singapore or the Vatican
• Medieval Venice, for one
• A small country that is teetotal around the icy East
• It is found by bottom of street on a square in Clare and, in the past, Athens
• Carthage or Sparta
• Run out of meeting held by spies, note, in Athens once
• Possibly 'Attic'? Yes, that's originally what Athens was!
• The Vatican, for one, extremely chary about computer studies, say
• Carthage, for one