Related Clues:

• Outset
• Unintended movement
• Machine button
• Muscle attack
• Sudden spell of activity
• Hiccup, for instance
• Turn a key, perhaps
• Brief flash
• Word next to an arrow in a maze
• One end of a maze
• Real jerk
• "___ the Revolution Without Me" (1970)
• Muscle trouble
• Muscle cramp, e.g.
• Zero hour