Related Clues:

• Message on the beach of a remote island, maybe
• Captain's "I need help ASAP!"
• Song in 'Mamma Mia!'
• Call hidden in this puzzle's eight longest answers that's apt for May Day?
• 'Help!,' asea
• Distress call letters
• Rihanna hit that samples 'Tainted Love'
• "Help!" (and this puzzle's title)
• Big name in pads
• Help plea from the sea
• What the Titanic sent out
• A leg up
• Help, Mr Morse!
• Help! - in code
• Morse Code for help