Related Clues:

• Really move one's tail
• Humorous sort
• Mother __
• Shake, as a finger
• One-liner producer
• Mental ability
• Swift quality
• Comic's asset
• 'Educated insolence,' according to Aristotle
• Droll commentator
• Wisecracker
• Shake, as a tail
• Jester
• Ad libber's asset
• Knack for comebacks