Related Clues:

• Dope on a horse
• Scratch left on a table?
• Marker's end
• 15%, maybe
• Tongue part
• Recommendation
• Bettor's boon
• Waitperson's reward
• Bellboy's bonus
• Bellhop's expectation
• Brass band sound
• 20%, maybe
• Lose balance
• Leave something for the waitress
• 15%-20%, for a waiter