Jase: you don't deserve it, you sod, with your flounce nostalgia gags, but here goes.
The standard crossword clue comes in two parts, which can be in either order: one part is cryptic and the other is straight. This envelope can be pushed, but not too far and not too often.
Let's start with my first one. The author of The Good Soldier Svejk is HASEK. "Backing", that's KESAH. The cryptic part of the clue is "Stout fighters for autonomy get backing of author of The Good Soldier Svejk, and", which is FAT ETA KESAH AND. The straight part is "destiny intervenes" which is FATE TAKES A HAND.