Francois Mauriac vs writer

Francois Mauriac and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Francois Mauriac	Yes	No	No	No
writer	Yes	No	No	No

Francois Mauriac (noun)	writer (noun)
French novelist who wrote about the conflict between desire and religious belief (1885-1970)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something