Possible Clues:

• Absurd pretence to create a good impression
• Vegetable containing a drug results in farcical performance
• Acting out of a phrase
• Acted riddle - pretence
• Hear cad deciphered a riddle
• Obvious sham
• Cleaner needs help, say, it's part of the game
• Parody of commercial supporting cleaner energy
• Absurd act of cleaner forced male to leave
• Farce enjoyed involving artist breaking into church