writer vs David Herbert Lawrence

writer and David Herbert Lawrence both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
David Herbert Lawrence	Yes	No	No	No

writer (noun)	David Herbert Lawrence (noun)
writes (books or stories or articles or the like) professionally (for pay)	English novelist and poet and essayist whose work condemned industrial society and explored sexual relationships (1885-1930)
a person who is able to write and has written something