Hidden Theme Crossword

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Across
  1. 1. Common people, usually derogatory. (3, 6)
  2. 3. Angels that look like wheels. (7)
  3. 6. Decorative style. (4, 4)
  4. 10. Dog breed. (7)
  5. 12. You too will die in the end. (7, 4)
  6. 14. "Divine wind" imitated by suicide bombers. (8)
  7. 16. There's no turning back now. (4, 5, 3)
  8. 20. Edict (5)
  9. 22. Objects on stage. (4, 2, 5)
  10. 24. As decreed by the law. (2, 4)
  11. 25. Racism enshrined in law. (9)
  12. 26. Permitted, often with respect to food. (5)
  13. 27. A piece of art, not to be confused with an objet d'art which is clearly something very different. (9)
  14. 29. Opposite energies. (3, 4)
Down
  1. 2. Theme tune, particularly of an important character. (9)
  2. 4. Famous one-liner, baby. (5, 2, 5)
  3. 5. Congratulations, often sarcastic. (8)
  4. 7. This clue is a red herring. (5, 7, 5)
  5. 8. Without any background music (1, 8)
  6. 9. The general mood of the current era. (9)
  7. 11. (If) God wills it. (9)
  8. 12. Cartoons often mistakenly read backwards. (5)
  9. 13. Mercy-killing. (4, 2, 5)
  10. 15. Greatest creation. (6, 4)
  11. 17. Spoken in a whisper. (5, 4)
  12. 18. Criminal intent. (7)
  13. 19. Social class similar to knight. (7)
  14. 21. Indescribable character trait. (2, 2, 4, 4)
  15. 23. A god who walks amongst us. (8)
  16. 28. Almost identical to a parable, often takes the form of riddles. (4)