Note: Six of the clues are printer's devilry with thematic answers.
Across
1. Grandson to Isaac Newton, son to filmmaker Barry (8)
5. Selling a product of ale? Sue for a higher price (6)
9. Sport follower entertained by an awfully tired racing driver (8)
10. Showered, readin' comic (6)
11. Particle destroying a cat (3)
12. You and Lizzy running to get opening frame in football club, which is not an exact science (5,5)
14. First, um, is a pleasant savoury taste (4)
16. Perhaps used to being thrown out (6)
19. Gal ioned his detractors (7)
22. New luxury IP hates ruler, purchased (7)
23. Freezing street in its present condition (6)
27. After the wart, hear my bat: Tai's broken up (4)
28. Representative of Maradona accidentally having both feet cut, sliced by singer (10)
31. A degree of affliction eradicated in Swazi capital (3, abbr.)
32. Group of 25 down – what is translated from Italian to Spanish? (6)
33. Having gotten intravenous injection, tell others the ending to White Noise (8)
34. Prominent Marxist's unfinished legend about the entrance of Soviets (6)
35. Visitors of "Exodus" author being surrounded by small children (8)
Down
1. Prof. Gale breaking up children's game (8)
2. Five jazz insiders holding you in Germany's capital (5)
3. Poor trainee, dying in secret (5)
4. No point being spoilt for choice (6)
6. Some preferred American cheese (4)
7. Headless 18 down protects leading groups (9)
8. Grotesque – Daily News' primary typeface (6)
10. Massive flyer for Republic of China's leaders (3)
11. An English Tex man is Ed (5)
13. Spot components of Nazi tanks (3)
15. Use plant regularly, leading to altercation (4)
17. Secretly following doing wash up (9)
18. A man's electric car (4)
20. Bogey man seen near a city in Italy (5)
21. Illegitimate rulers initially under pressure, perhaps losing backer (8)
24. Ignore men, Lady Lovelace (3)
25. Overused trope: an undead creature in ice, without its head (6)
26. Language perceived at first as hot mess (6)
28. Lincoln, Nebraska beheaded prisoners (3)
29. Cut grass back at any time (5)
30. Day of defeat's beginning for Islamic State, missing top fighter (5)
31. Think about cliff in Scotland (4)