Related Clues:

• Chief; money
• Investment's high in architecture
• Excellent kind of characters needed for TV but not radio
• Top-quality Brussels?
• Start of sentence for most serious kind of crime
• Star on a map
• That's splendid in Washington
• Rome, for instance, do better than most of Italy
• Excellent, like every part of RAF, but not army or navy
• Chief; excellent
• A country's main city
• Oxonian's 'Outstanding!'
• Ballpark figures perhaps for the city of London
• Dandy, Stanley or Douglas, perhaps?
• What may be invested in Edinburgh?