Related Clues:

• Unpaid bill
• Chapter XI cause
• Red state?
• Obligatory note
• Credit-card woe
• Charging result
• It'll cost you to be in it
• Credit card aftermath
• It could be something of great interest
• Owed amount
• Clancy's ''___ of Honor''
• Unpaid group of 7-Down
• Economic concern
• Collector's item?
• Money you owe