Related Clues:

• Steed stopper
• "Hold on!"
• Guard's shout
• "Take it easy!"
• Marching order
• Cry of surprise
• Cease
• Checkpoint Charlie shout
• Sentry's shout
• "Amazing!"
• Sentry's call
• "Stop, Silver!"
• Jockey's cry
• Sentry's "Stop!"
• 'Slow down!'