Related Clues:

• Roman X
• Gymnast's perfect score
• It bears Hamilton's portrait
• X, as a number
• Countdown start, often
• Number of doctors?
• Basketball courtful
• End of a ring count
• Judge's highest rating, on 'Dancing with the Stars'
• Judge's highest rating, on "Dancing with the Stars"
• Nonet plus one
• Six plus four
• Commandments count
• Phil Rizzuto, on the Yankees
• Break time for many