Across
- 1. The su in sudo is short for _ (5)
- 3. Part of the Shire where Bilbo Baggins lived (8)
- 5. Highly secure browser (3)
- 7. The aim of bowls is to roll your ball closest to the _ (4)
- 9. C++ variable that stores the address of another variable (7)
- 12. Element with 70 protons (9)
- 15. Actor who played Mark Scout in Severance Adam _ (5)
- 16. Early WWII British tank in serive 1938-1940 (7)
- 18. Shape of a spring. DNA is a double _ (5)
- 20. Friend of Jake (4)
- 21. Car company that employed Gilbert Netherwood (7)
- 22. Star of the Bee movie: Jerry _ (8)
- 23. Name which is Latin for small or humble (4)
- 24. Noble gas which can be used to make stroboscopic light (5)
- 26. Find dy/dx where y=3x^2+5 at the position x=2 (6)
- 27. 2D carbon semimetal (8)
- 30. The political act of speaking so long that voting cannot take place (10)
Down
- 1. Hometown of Britain's first officially licenced stripper (8)
- 2. President of USA during moon landing (5)
- 4. Mathematician and physicist who also reformed currency in England (6)
- 6. Sugar is the short chain form of this nutrient (12)
- 8. Enemy of Batman: Oswald _ (4)
- 10. Coding language named after British comedy group (6)
- 11. Tax haven in the English channel (8)
- 13. To be a customer of a business or to be condescending (9)
- 14. Liam Neeson film (5)
- 15. Talisman character and herb (4)
- 17. Author of Skulduggery Pleasant: Derek _ (5)
- 19. Four naans (6)
- 25. The purpose of banks is saving and _ (6)
- 28. Special forces unit of British army founded in 1941 (3)
- 29. Law enforcer in Mega City 1