Edna O'Brien vs writer

Edna O'Brien and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Edna O'Brien	Yes	No	No	No
writer	Yes	No	No	No

Edna O'Brien (noun)	writer (noun)
Irish writer (born in 1932)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something