Possible Clues:

• Famous London street
• Old game in which ball is driven through an iron ring with a mallet
• Friend left in front of shopping complex in the heart of London's clubland
• London street noted for its many clubs
• Boris Johnson captivates everyone with a couple of lines somewhere in London
• London street (worth £140 in 14)
• Well-known London street
• Street where the prime minister receives everybody without exception
• Fashionable London locale
• Tree completely overshadows entrance to London thoroughfare