Related Clues:

• Get to work
• Common contraction?
• Crank up
• Twitch or tic
• Word on a maze
• Take step one
• Muscular misfire
• Burst of energy
• Maze entrance word
• "Boo!" reaction
• Hiccup cause
• First square of some board games
• Muscle twitch
• Crick in one's neck, e.g.
• Sudden movement