national leader vs Robert Clive

national leader and Robert Clive both are nouns.

Word	Noun	Adjective	Verb	Adverb
national leader	Yes	No	No	No
Robert Clive	Yes	No	No	No

national leader (noun)	Robert Clive (noun)
a person who is a respected leader in national or international affairs	British general and statesman whose victory at Plassey in 1757 strengthened British control of India (1725-1774)