clever Dick vs intellect

clever Dick and intellect both are nouns.

Word	Noun	Adjective	Verb	Adverb
clever Dick	Yes	No	No	No
intellect	Yes	No	No	No

As nouns, intellect is a hypernym of clever Dick; that is, intellect is a word with a broader meaning than clever Dick:

clever Dick: an intellectual who is ostentatiously and irritatingly knowledgeable
intellect: a person who uses the mind creatively

Other hypernyms of clever Dick include intellectual.

clever Dick (noun)	intellect (noun)
an intellectual who is ostentatiously and irritatingly knowledgeable	the capacity for rational thought or inference or discrimination
	knowledge and intellectual ability
	a person who uses the mind creatively