Possible Clues:

• Delivery at a nightclub
• Funny
• Stand-up staple
• It may begin with a buildup
• Kid
• It may be practical or delivered in a nightclub
• Word that may follow the start of 20-, 25-, 44- or 50-Across
• It may be delivered at a nightclub
• Monologue unit
• It may start with someone entering a bar