Related Clues:
- Oceanic distress signal
- "Help wanted"?
- Main signal
- They're marked
- Job listing abbr
- Intl. distress letters
- Plea at sea, briefly
- Help!
- A call you're desperate to make
- Mariner's "Mayday!"
- Nine-tap signal
- Castaway's signal
- Abbr. in a job posting
- Mayday! (and the initials of this puzzle's longest answers)
- 'Save us!'