Related Clues:

• Stretched circle
• ___ Office (White House room)
• Like many an amphitheater
• Not a perfect circle
• Lionel train path, often
• Like most orbital paths
• Racetrack path
• Common Lionel layout
• Like a zero
• Sort of round
• Track configuration
• Some MPs
• Serfs' bosses
• Miler's loop
• Typical track