Related Clues:

• What chips may represent
• 'Friendship is like ___, easier made than kept': Samuel Butler
• Man in black
• Coins and banknotes
• Tip jar filler
• It can get you stuff
• Tens and twenties
• Monopoly game need
• Notes of value
• Green remains behind Conservative
• Pounds, for example
• Flea market payment
• Spending money: cent remains
• It's next to FIVE on a nickel
• US singer-songwriter's notes, perhaps?