Genius 240 ( Guardian )

[Matakari]

Good morning, an intriguing puzzle indeed! The real puzzle seems to be in finding the“way”.
I’ve completed 50% of it and am seeking some hints for the following, thanks in advance.
Numbers for clues are mine.

(All clues are normal and all solutions are single words. However, the solutions are in no particular order and you must discover some other way of deciding where the solutions should be entered in the grid. )

ACROSS
●2 PM briefly losing face and energy, finally put in the shade
●4 Go back in contradictory directions, getting fare from Glasgow
●7 Current friend of Harry's accompanying eg Maggie and Delia and old artisans
●10 Retreating European left cross, with sense this is caused by foreign agents

DOWN:
●6 They demand money in a day, holding monarch up
●7 Drinks described by short passage in cliched style
●9 Scot's elder brother, extremely urbane, dropping Henry off
●12 Fellow, irritating, putting away gallons, several of them

[Matakari]

Many thanks for your generosity in supplying the letters, jj109!
I would appreciate a few more hints to show me where I went wrong with my answers.