national leader vs Jan Smuts

national leader and Jan Smuts both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Jan Smuts	Yes	No	No	No

national leader (noun)	Jan Smuts (noun)
a person who is a respected leader in national or international affairs	South African statesman and soldier (1870-1950)