What's The Track Title?

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Across
  1. 2. Staffell sang it when it was a Smile song
  2. 5. Mercury's last vocal performance
  3. 12. It features John Deacon on bass but not a Queen track
  4. 14. never been performed live by Queen, but has by GNR
  5. 15. one shrimp, one prawn, one clam, one chicken...
  6. 16. about a high-class call girl
  7. 17. comes in the form of a really cool red and white t-shirt
Down
  1. 1. phone message at the end is in German
  2. 3. inspired by Noël Coward's camp one-liners
  3. 4. after the fairy feller's master-stroke
  4. 6. the third song the band performed at Live Aid in 1985
  5. 7. was written about the British press
  6. 8. re-recorded along with I Was Born To Love You
  7. 9. band and label ended up in a legal battle
  8. 10. the song was inspired by gospel music
  9. 11. The song ends with the sound of a thunderbolt
  10. 13. what's the lyric?