specialistic vs specialist

specialistic is not a noun while specialist is a noun.

Word	Noun	Adjective	Verb	Adverb
specialistic	No	Yes	No	No
specialist	Yes	No	No	No

specialistic (noun)	specialist (noun)
	an expert who is devoted to one occupation or branch of learning
	practices one branch of medicine

specialistic (adjective)	specialist (adjective)
of or related to or characteristic of specialists
showing focused training