Possible Clues:

• Marx Brothers bit
• What a caper that one comes from the hill, I see!
• Like the Beatles in 'Help!'
• Playful or mischievous act
• I, along with Pa and Ted, might have foreseen such an absurd thing
• Eager to eat in various ways & Co
• Marxlike
• Chanticleer's occupation seen to be bizarre, at one time
• Ludicrous act done for fun
• High-spirited