apt vs clever

apt and clever both are adjectives.

Word	Noun	Adjective	Verb	Adverb
apt	No	Yes	No	No
clever	No	Yes	No	No

As adjectives, apt and clever are synonyms defined as:

apt (adjective)	clever (adjective)
being of striking appropriateness and pertinence	showing inventiveness and skill
(usually followed by `to') naturally disposed toward	mentally quick and resourceful
mentally quick and resourceful	showing self-interest and shrewdness in dealing with others
at risk of or subject to experiencing something usually unpleasant