Related Clues:

• Respond to an SOS
• Mayday cousin
• Aid
• CQD successor
• Terse radio message
• Household staff
• Fab Four flick
• '___ yer old man!'
• Beatles hit
• 'Mayday!'
• Musical film of 1965
• '-- your old man!'
• It's sometimes written in the sand
• Maritime message
• Urgent request