I think you're right about 23/25/27 as it's all across.
I have completed the crossword, and I am fairly confident about my answer for 16/10, but I can't fully parse the clue.
Dithering defector?
+ Fool pocketing a lot of money (I think misspelt word for vocation which pockets a lot of money)
= What the electorate needs
It's mostly the dithering defector part I don't get