This is a themed cryptic crossword, with five answers sticking to the theme.
ACROSS
2/29d. Guitarist for 20-down (or Radiohead), content in retiring, achieved $1000 (4, 4)
4. Reactions of surprise following sound of explosion in ceremonies (7)
8/27d. Golf game beginning with an event of food and tea for the audience (3, 4)
11. Josh goes back to golf hole, ending with a light push (5)
12. Even before Christ shelters man (7)
13/1d. Within trip; it's to pause! (3, 4)
14. Red part appears in beryl's center facets irregularly, causes change in direction of light (8)
15. Nothing ever ends/changes, to English philosopher (4)
18. (See 17-down)
19. Entering Senegal's south initially, extremist having gun lurks (6)
21. Greatly destroy capital having no symbol (4, 2)
22. Intervene in haste, pinning prisoners (4, 2)
25. Back to award lacking width or depth? (4)
26. Poor hero's dressed, going to the sea (8)
28. Recalling episode, finally withdraw from seat (3)
30. Spanning Swedish author's exempla at first (7)
31. T-Rex mutilated a person in the background of show (5)
32. Run in Scottish parish in the middle north (3)
33. Biologist and pseudoscientist to induce dissolution with no infusion of potassium (7)
34. Iranian guy who lost fiancée visits yours truly (4)
DOWN
1. (See 13-across)
2. Curt men ordered a certain brand of multivitamins (7)
3. Refined new composition in the key of G, changing meaning (10)
5. Robot's left with unit of information within; confined in zero gravity like a satellite around Earth? (8)
6. Wizard John's defense? (4)
7. Primarily old, degrading ruins, interspersed, points to a group of historical places briefly (7)
9. Saved tattered writings (5)
10. British aircraft are unnaturally overpowered way after (9)
16. Before noon on both sides of street/road, surrounding eastern capital (9)
17/18a. Anticipate time of event, a desire about it: for them to bring back genre of music (4, 3, 3, 6)
20. Rhythm section becoming prominent from the fifth EP, "False Album": every second of it brought about constant funk, at last! (8)
21. Possessing immense power, with respect to besieging east and west of Lithuania (7)
23. Appear excited without a single note to ready up (7)
24. In Athens' west, stone bulwark ultimately turning crooked (5)
27. (See 8-across)
29. (See 2-across)
P.S. In addition, I have thought about one clue for a while, because it uses a method of cluing that many may perceive as unfair. However, I really want to preserve its surface reading. To the Ximenean adherents more devout than I am, please don't burn me alive for this :(( I promise, though, that, in the future, whenever I use this method of cluing again, I will make use of much fairer examples. (For now though, to be kinder, I will say that the clue needs **two spaces** for the cluing to be at its fairest, though the surface reading be ruined.)
P.P.S. I am aware of the three consecutive unchecked cells in 10-down and 16-down. I will also make sure to not repeat this next time.
P.P.P.S. The blue colors are just for aesthetics. I'm tired of seeing crosswords all black and white :P
P.P.P.P.S. Finally, this is my second try at cryptic clues, but the first at cryptic crosswords. Do provide feedback, especially if I have erred in cluing methods.