Crossword for Smarties

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Across
  1. 4. Afflict with worry
  2. 5. Favourite of Edward II
  3. 8. Constellation
  4. 9. C2H5OH
  5. 10. Greek letter that commonly denotes (*)
  6. 15. First US state
  7. 17. Pinyin of Elephant
  8. 19. Often made by leprechauns
  9. 21. Worshipper of cylindrical quaffing cups
  10. 22. Put down
  11. 24. Mathematical spring
  12. 29. Skirt in French
  13. 30. C2H3 group
  14. 31. Polytetrafluoroethylene
  15. 32. Unattractive lawyer
  16. 33. Second word in 凡古山
  17. 34. Son of Aegeus
  18. 35. Thin membrane
  19. 36. Type of leather
  20. 38. Young male horse
  21. 39. Iron
  22. 40. Be imminent
  23. 43. Deep shade of red
Down
  1. 1. Animal associated with Saraswati
  2. 2. Swift's ninth album
  3. 3. A non-algebraic number
  4. 6. A large group of similar things
  5. 7. Ex-Talon operative
  6. 11. Bay of Alcatraz (abbr.)
  7. 12. Multidimensional matrix
  8. 13. Public passenger vehicle
  9. 14. Slightly intoxicated
  10. 16. Dainty reptile
  11. 18. Hermione is not an...
  12. 20. Gormenghastian chef
  13. 23. Widow infatuated with Don Juan
  14. 25. (*) Non-zero smaller than all positives
  15. 26. Main rings of Saturn amount
  16. 27. Poem attributed to Homer
  17. 28. A function whose derivative is never zero
  18. 33. Queen of scots
  19. 37. Donut licker
  20. 41. Tranquil rural scene
  21. 42. Hole in Italian