Related Clues:

• 'Whoa!'
• Terminate
• Railroad track
• Script snippet
• Word with stream or head
• Layover
• 'Cool it!'
• Flag down
• Grind to a halt
• Telegram "period"
• Tops a different way?
• Octagonal traffic sign
• 'Come here often?,' e.g.
• Call a halt to
• "Freeze!"