Related Clues:

• Telegram word
• ''Go no farther!''
• Plumbing supply
• 'Let it be!'
• Holmes trademark
• Give it a rest
• You may come to it
• Put the brakes on
• Tour part
• Sneezer's need
• Red alert?
• It has a stem and a bowl
• "Don't take another step!"
• Plumber's kind of dream?
• What 28-Across means