Related Clues:

• Very funny fellow
• One way to run
• 'The Katzenjammer Kids,' e.g.
• Pandemonium
• Brawl
• Run amok
• Tumult
• Free-for-all
• Civil disorder
• See 57-Across
• Wit
• Clown
• Jokester
• Intelligence
• Hit at Catch a Rising Star