talent vs expert

talent and expert both are nouns.

Word	Noun	Adjective	Verb	Adverb
talent	Yes	No	No	No
expert	Yes	Yes	No	No

As nouns, expert is a hypernym of talent; that is, expert is a word with a broader meaning than talent:

talent: a person who possesses unusual innate ability in some field or activity
expert: a person with special knowledge or ability who performs skillfully

talent (noun)	expert (noun)
natural abilities or qualities	a person with special knowledge or ability who performs skillfully
a person who possesses unusual innate ability in some field or activity

talent (adjective)	expert (adjective)
	having or showing knowledge and skill and aptitude
	of or relating to or requiring special knowledge to be understood