Related Clues:

• Keep ___ head above water
• Candy machine input
• Some poor Olympic scores
• 'Your' alternative
• Washingtons in the wallet
• Eleven separated and in two
• Some till bills
• Eleven's numerals
• Common bills
• They get swapped for quarters
• Fiver units
• Change components from a cashier, sometimes
• Half of the pair twice unearthed hidden in Keystone sketch
• "This ___ on me!"
• The right kind of column