In the comments to this post, feel free to ask questions and have clues or answers revealed to you that are full of spoilers.
Update: Here’s what I’m still confused about:
5 down: Fuel up motor during strike to extend preliminary payment (10)
I’ve almost figured it out as up motor during strike to extend preliminary payment = up car during hit to extend preliminary payment = hracit to extend preliminary payment = anthracite = fuel.
The question: how does to extend preliminary payment = ante?
8 down: Wait as leader in African republic demoted fight (4, 5)
I worked this out as as leader in African republic demoted fight = as leader in Ghana demoted bout = hang about = wait.
Problem: what’s the anagram notifier for Ghana? Have I got this preliminary explanation completely wrong?
22 across: Change required in Japan to accept United Nation (6)
Somehow the answer is Sweden. How?
21 down: (crestfallen) 10-across loggers open vessels?
How does one arrive at vessels = ewers?
12 across: Cored apple, perhaps, cheers omelet (8)
I’m guessing I’m a variety of apple away from figuring out why frittata = omelet.