Lots of good advice in this post.
I also find the 10 tips for clear writing at the following link very helpful - it overlaps with some of the advice in the post above - and includes some additional suggestions:
https://gds.blog.gov.uk/2019/08/27/podcast-on-writing/
You don't need to listen to the podcast at the top of the page above (unless you want to). Instead, scroll down the page and you'll find a short description of each of the following tips.
1. Establish ‘The Point’
2. Write it like you’d say it
3. Don’t try to sound clever
4. Show the thing
5. Know that you are not your writing
6. Share your work
7. Read (poetry in particular)
8. Never start with a blank page
9. Know when enough is enough
10. Stay human