Related Clues:

• Cygnet's destiny
• Wailing warning
• '___ Lake'
• Lorelei, for one
• Erstwhile ugly duckling
• Ugly duckling, later on
• Ambulance accessory
• Cygnet's parent
• Graceful dive
• Tchaikovsky's "--- Lake"
• Classic ballet role
• Word with dive or Lake
• Squad-car sound
• Pen, e.g.
• Charmer