Related Clues:

• Do not delay
• Opera part
• Don't just sit there
• Make a scene?
• Front
• Misbehave, with 'up'
• Jerk one's knee, e.g.
• Watch the tykes
• It may be heroic
• "...where the buffalo __"
• Take a breather
• Tend the kids
• Opera or ballet part
• Play a part or play part
• Be peripatetic