Solutions "Swan Lake" heroine has 4 entries with similar clues

• 11-letter words
• tchaikovskyComposer of 'Swan Lake'
• 12-letter words
• balletanswerResponse to a question about "Swan Lake"?
• 13-letter words
• niagara-riverRiver of North America flowing northward from Lake Erie to Lake Ontario
• ballet-schoolWhere Swan Lake is studied