Related Clues:

• Oil the palm (of)
• Grease, as it were
• Inducement to put a billion into historic region in France
• Subject of many a political scandal
• Money under the table
• Under-the-table money
• Illegal contribution
• Illegal incentive
• Square cheese British tucked into
• Sweetener, back-hander
• Sweetener, inducement
• Bung cheese round top of bun
• Carrot and head of broccoli smothered in cheese
• Cheese containing initially banned sweetener
• Back-hander