Related Clues:

• Soccer ref's foul indicator
• Check for ID
• Check the birth date of, say
• 'We ___' (convenience store sign)
• Quipster or punster
• Quick-witted one
• It may say "I'm sorry"
• Jack or joker
• Blue October: "Clumsy ___ House"
• Tongue or tail motion
• Professional clown
• Christmas greeting
• Comical or eccentric person? Trump, perhaps
• Common type of trick
• Reaction to a treat, maybe