writer vs Francis Scott Key Fitzgerald

writer and Francis Scott Key Fitzgerald both are nouns.

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

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