Possible Clues:

• Bookie's charge
• Producer Butch
• Bookie's cut
• Bookie's due, briefly
• Bookie’s charge
• Producer Butch of 9-Down
• 1% to your bookie on the Mets winning it all this year, say
• Bookie's payment, for short
• Bookie's earnings, for short
• Bookie's charge, for short