Which of the following best describes "A man of letters"?

A man of letters
English Meaning: a male scholar or author.
Bangla Meaning: পণ্ডিত / বিদ্বান / লেখক।

Hence, the idiom "A man of letters" best describes - A scholar.

Ex. Sentence: Dr. Shahidullah was a man of letters.
Bangla Meaning: ড. শহীদুল্লাহ একজন পণ্ডিত / বিদ্বান ব্যক্তি ছিলেন।

Source: Lecture.