Pack 2 Puzzle 3

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Across
  1. 4. It could be catastrophic.
  2. 8. Contain flu outbreak - it's working.
  3. 9. Sensible to digest books going round.
  4. 20. Host who knows all the answers.
  5. 21. Noisy tree climber.
  6. 22. 15 ml
  7. 25. Traveled, a la "Star Trek"
  8. 27. Kiddie pool accessories.
  9. 28. Form of transport usually ridden standing up.
  10. 30. Risk.
  11. 31. Huron, Erie etc.
  12. 33. Light year's nine trillion.
  13. 39. 4 Weak-kneed footballer's cheap novel.
  14. 42. Successfully achieve.
  15. 43. List of classes.
  16. 44. China's neighbour.
  17. 45. I've a poster to rouse employees.
  18. 48. Afro, bob, crewcut etc.
  19. 49. Fortnite and The Legend of Zelda, for two.
Down
  1. 1. Actor Jack a Best Actress Oscar winner.
  2. 2. The Crown pub has single, small cans.
  3. 3. Quagmires.
  4. 5. Indication of feeling.
  5. 6. Small compartments.
  6. 7. Measure of a small amount of mouthwash?
  7. 10. Below speed checked and poorly recommended.
  8. 11. Reddened.
  9. 12. Don't lose your head!
  10. 13. Shrub inapt? Dreadfully - this might add colour.
  11. 14. Device for breaking shells.
  12. 15. Churchill co-star of Brian Fox.
  13. 16. Having no education.
  14. 17. Bacon-wrapped dates or cheese and crackers, e.g.
  15. 18. One who sponges off others' charity.
  16. 19. Lawful, regular.
  17. 23. Recognised.
  18. 24. Wrapping.
  19. 26. Rubbish collector.
  20. 29. For the record.
  21. 30. Easter Bunny's delivery.
  22. 32. Ibuprofen, e.g.
  23. 34. Reference points.
  24. 35. 36-inch rulers.
  25. 36. Wooden glockenspiels.
  26. 37. Asian country; capital Seoul.
  27. 38. Having a market value below its book value, as a loan.
  28. 40. Paintings representing expanses of countryside and other natural settings, such as those by Claude Lorrain.
  29. 41. An observation tower.
  30. 46. Evasive maneuvering.
  31. 47. Central football player.