list at least one thing to check for when you're checking the clarity and professionalism of a document.

Basic grammar and spelling

Explanation:

In the midst of everything, whether it is writing a professional email, CV, or business reports, it is always important to proofread your document and check for spelling and grammar mistakes. Grammar and spelling mistakes should be among the first things to check. Skim through your sentences and try not to overlook the very basics of sentence structure and logic. Check punctuation, wording, and many more. Failure to check on these things can not only tarnish the impression of your document but also set you up for failure.