Related Clues:

• Help wanted sign?
• Only hit song for which title and artist are both palindromes
• An obvious cry for help
• Coded plea
• Legal option
• Sea call
• Morse code message
• Ask earnestly
• Sinking signal
• Sign of distress
• Mayday! Mayday!
• Main message?
• Take to a higher court
• Dashed-off message?
• Idol's attribute