Related Clues:

• Break in a charge card
• 'I __ you one'
• Have yet to pony up
• Have debts to pay
• Pass (time) in a specified way
• Go on a buying binge
• Use plastic, say
• Be shy, monetarily
• Have yet to settle up
• Be shy, say
• Hand over, as cash
• Carry a mortgage, say
• Get a Venmo request, say
• Have to remit
• The "O" in IOU