Possible Clues:

• Groaner, sometimes
• 'Piano is not my forte,' e.g
• Groan and bear it?
• 'No ___ intended'
• Essence of a knock-knock joke
• Ogden Nash specialty
• "Noah kept bees in the ark hive," e.g
• "Queen of denial," e.g.
• "I'd like to study philosophy, but I just Kant," e.g.
• "I threw away my golf shoes when I got a hole-in-one," e.g