Related Clues:

• React to seeing red?
• Injunction sign?
• Sign type
• 'Freeze!'
• Road sign
• Red's meaning, at times
• ''Freeze!''
• Free pass, of a sort
• Bus destination
• ''Enough!''
• Market order
• Get off here
• 'I don't want to hear any more!'
• Take a hike
• Instruction at many a corner