writer vs Aleksey Maksimovich Peshkov

writer and Aleksey Maksimovich Peshkov both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
Aleksey Maksimovich Peshkov	Yes	No	No	No

writer (noun)	Aleksey Maksimovich Peshkov (noun)
writes (books or stories or articles or the like) professionally (for pay)	Russian writer of plays and novels and short stories; noted for his depiction of social outcasts
a person who is able to write and has written something