Related Clues:

• Person from London
• Any Londoner
• Rocker from '60s "invasion," slangily
• Native Londoner
• Discover M has plant for top agent?
• Petrol pumper
• Traveller in London's Tube
• Subject of Queen Elizabeth, informally
• Someone having agents to sort out party mess
• Mick Jagger or Pete Townshend, for short
• The -- Awards, annual pop music awards
• Greenwich guy, for short
• Many a bangers-and-mash eater
• Pounds spender, informally
• This could be M’s part? Yes