You can’t write clearly, without first thinking clearly.
But thinking is a messy process; especially when kept in our heads. So writing helps us clarify our thoughts.
This is one of the reasons why I started daily and public writing.
I doubt I’ll get to the point where I’d dare call myself a clear thinker or writer (I probably wouldn’t trust anyone who boasted of that, anyway), but my aspiration is to inch toward becoming better at these skills through consistent effort over time.
And for me, that begins with turning up each day.