Related Clues:

• Eight-sided traffic sign
• Point on a bus map
• Telegram period
• React to seeing red?
• Injunction sign?
• Sign type
• 'Freeze!'
• Road sign
• Red's meaning, at times
• ''Freeze!''
• Bus destination
• ''Enough!''
• Market order
• 'I don't want to hear any more!'
• Instruction at many a corner