ACROSS
1. Scorpion or spider (8) 5. Severely distresses an individual with disease (8) 9. Beer maker (6) 10. One who eats no meat (10) 11. Come into view again (8) 14. Sharp goading instrument attached to a horse rider's 17. A parent's brother or aunt's husband (5) 18. Roofers who use straw, reeds, leaves etc (9) 19. Remove soluble soil constituents by percolation (5) 20. Domesticated (5) 22. Width (7) 23. Vegetable organism (5) 25. Of the moon (5) 27. Large, bristly insect-eating flying insect (6,3) 28. Small antelope of sub-Saharan Africa; the palebuck (5) 30. Any destructive animal or insect (4) 32. Pliable (8) 34. Level area by a river with fertile soil from deposited sediment (5,5) 35. Genus of trees of the willow family, including cottonwood and aspen species (6) 36. Substance that accelerates a chemical reaction (8) 37. Essential; fundamental (8)