Related Clues:

• Baksheesh
• Stew holder
• Piece of advice
• See 38-Down
• Drug
• Trackside offer
• Place to put bets
• It may need sweetening
• Good lead
• Not stiff?
• 15 percent, often
• You can bet on it
• Diner's prerogative
• It's left behind in good restaurants
• Line on a bill