Related Clues:

• Phil Rizzuto's retired number
• Word with pins or penny
• Insepar-able
• Good rating
• X rating
• With 17-across, cause of mass ruin
• Pin number
• "___ Life to Live"
• Common bill
• Low bill
• Scale's top, sometimes
• Person
• Early hour
• Binary digit
• With 30-Down, combination punch