Related Clues:

• Bill add-on
• Extra amount
• Broker : commission :: waitress : ___
• Inside information
• Waiter's reward
• Word to the wise
• Memorable D.C. nickname
• Fall over
• Lagniappe
• Reward for waiting
• Reward for waiting?
• “Psst! Smarty Jones in the fifth!”
• Boating mishap
• Extremity
• La gniappe