Related Clues:

• Direction at sea
• Attention-getter
• Hail, on the briny
• Hey there, at sea
• Kind of call
• 'Halt!' to a salt
• Mate's call
• 'Belay there!'
• Alarm
• Lorelei, e.g.
• Mythical bird-woman
• Crow's-nest cry
• Yawl call
• Femme fatale
• Road warning