Related Clues:

• Type of card or union
• Credit cards, slangily
• It's cheaper than a gift
• After-dinner request
• Rush order
• Witty sort
• Attribution
• Chit used when you're out of chips
• Payback promise
• Sketchy substitute for cash
• 'Attack!'
• Club's cover
• Letters of indebtedness
• Debtor's slip
• Seek proof of age