Related Clues:

• Request to be rescued
• Morse message
• Help wanted letters
• 'Help!
• Maritime distress call
• Nautical ''Help!''
• One might be received on a bridge
• 'Help wanted' letters
• It may be tapped out at sea
• Signal meaning ''help''
• Worrisome letters to send
• It may go up in smoke
• Flashed message
• Help line?
• 'SOS!'