Related Clues:

• Run a deficit
• Have a 66-Down
• Have bills due
• Be short
• Be behind, perhaps
• Run up debt
• Devote
• Use a credit line
• ''To what do I ___ this ...''
• Get behind, in a way
• Lighten one's purse
• Be indebted
• Go on a shopping spree
• Go shopping
• Use 18-Across