The following clues form a word chain. The last three letters of one word form the first three letters of the next word, and the list wraps round from the last word to the first. Mostly straightforward, but there may be one or two hyphenated ones in there, and remember it was compiled by a Brit. Plenty there, so feel free to grab a couple

-1. Region of the outer atmosphere
-2. Upright
-3. Occurring in the wrong place (med.)
-4. Small pike
-5. Averse, disinclined
-6. Places on the surface of the earth diametrically opposite to each other
-7. To plunder, pillage
-8. Waterproof garment
-9. Thing holding together a complex system or arrangement
-10. Bring into prominence, highlight
-11. Combines by successively taking one item from each of a number of groups
-12. Italian motor-scooter
-13. Petty argument
-14. Kneecap
-15. South American cud-chewing mammal
-16. Alloy of mercury and another metal
-17. Remark made to open or redirect a conversation.
-18. Mixture of hydrocarbons, a constituent of asphalt and tar
-19. Crystalline terpenoid alcohol, 2-isopropyl-5-methylcyclohexanol
-20. Firearm container
-21. Edible turtle
-22. Highest point
-23. Butcher’s tool
-24. Product of atmospheric corrosion, especially on copper
-25. Laughable, ludicrous
-26. Labour-saving kitchen device
-27. Dense inner layer of the skin
-28. Hater of mankind
-29. Plus, minus, square root etc
-30. Twisting of an object by means of two opposing turning forces acting at right angles to its axis