Related Clues:

• Bring to a standstill
• Catch, as one's attention
• Really impress, slangily
• Ripped, perhaps
• Collar, so to speak
• Well-toned
• See 73-Across
• Sudden twitch
• Power ___
• Something you can't control
• In fighting trim
• Display of bad temper
• Jerk or twitch
• Snap up
• Uncontrollable jerk