Related Clues:

• Apply elbow grease
• 'Monopoly payment'
• Word with state or sales
• With 16-Down, county board, at times
• Go all out
• Put forth effort
• Line on a cash register receipt
• Price booster
• Wield, as force
• Vigorously strain
• Worker's burden
• Apply with might
• Paycheck deduction
• Receipt addition
• Spend, as energy