A Puzzle By Radler (Feb 2022 )

[Matakari]

Good morning, I think I’ve got the 6 thematic elements, but am left with some niggling clues for which I would appreciate your answers, thanks in advance!

26 ( A ) Elevated river drowns native (8) :?I?B?R?? ( AIRBORNE )
27 ( A ) United agreed changes, first of all to money (6) : M?R?C?
2 8 ( A ) Couples went after opening booze (8) : ?N?W?E?S
17 ( D ) What former setter will do in film about Cher (8) : ?L?E???S ( CLUELESS )

MPP 117 | Cryptic Crosswords from Big Dave

The clues to six thematic answers lack a definition. Symbolically, they could represent one of the other answers. What is it?

[bobbinwales]

Is there anymore info for your final one like a letter count?

[Matakari]

Thanks, I was on the right trail. I am checking now to find out which of the answers can symbolically be represented by the thematic answers.

[bobbinwales]

Presumable the chemical symbols for the thematic answers like Boron (B?) will spell something out

[bobbinwales]

The one's I remember from your threads was Nitrogen (N), Boron (B) and Tungsten (W from very distant memory?)

[bobbinwales]

Can you remind us of what them thematic ones were (3 plus my 3?)

[ProfessorMaisie]

radium iodine oxygen

[ProfessorMaisie]

mamyalynne gave that answer but I think you'll get it from the symbols.

[bobbinwales]

Thanks..
I hope it leads Matakari to his pot of gold

[Matakari]

Many thanks, all, it was an interesting exercise, indeed!

[ichkeria]

Rainbow