Francis Scott Key Fitzgerald vs writer

Francis Scott Key Fitzgerald and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Francis Scott Key Fitzgerald	Yes	No	No	No
writer	Yes	No	No	No

Francis Scott Key Fitzgerald (noun)	writer (noun)
United States author whose novels characterized the Jazz Age in the United States (1896-1940)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something