Related Clues:

• The air up there
• Blue yonder
• Birds' milieu
• '___ Lake'
• Clouds' place
• Light or line lead-in
• Serious accident
• Erstwhile ugly duckling
• Ugly duckling, later on
• Cygnet's parent
• Write or line starter
• ___ & Telescope magazine
• Graceful dive
• Tchaikovsky's "--- Lake"
• Classic ballet role