Related Clues:

• Taxi alternative
• Newton's Diamond, for one
• Friend of the man?
• Public transportation
• ?
• Follow relentlessly
• Goofy, e.g.
• Canine
• Pound resident
• City transport
• Metro alternative
• Do a beanery chore
• Marilyn Monroe classic, with 23-Across
• Double-decker, e.g.
• It often comes to a stop