The most cryptic cryptic crossword ever (according to ChatGPT)

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Across
  1. 2. Strange stone conceals huge fear
  2. 4. Oversee
  3. 7. Trick gnome holds for treasure
  4. 13. Maliciously undermining a gentle spirit
  5. 15. Priest’s collar ultimately in tatters?
  6. 18. Bewildered trout leaps about stream
  7. 20. Apprehensive about overthrowing ruler’s word
  8. 21. A dragon’s sound, perhaps, causes chaos
  9. 22. Attempt turning leaf over
  10. 25. Scatter hints, concealing edge of suspicion
  11. 26. Decorate altar, partly hidden in tapestry
Down
  1. 1. Observing bird concealed by local oak
  2. 3. Attempt the start of great exploits
  3. 5. Chap’s quiet transformation leads to smoothness
  4. 6. Heads of empire lose it due to calamity
  5. 8. Barely seen as I’m out of the picture
  6. 9. Ring old Romeo quietly gets?
  7. 10. Indecorum
  8. 11. Spring fashion involves reversible tie
  9. 12. Enigma concealed in harmony loses key
  10. 13. Bank, say, lends assets in disarray
  11. 14. Composer, sad and crying, transformed into an insect
  12. 16. Strange site conceals final name—Hades’ ruler
  13. 17. Old city covers up true identity?
  14. 19. Place for final test at borders of gap
  15. 23. Meander endlessly in labyrinth’s center
  16. 24. Ten in wild fever cry – result is jubilant!