IQ tests were originally devised for people with compromised cognitive ability, for whatever reason, to assess what they could do and not do, to assess their future needs. They were not intended to assess the able-minded person. At best, they test for particular cognitive skill sets and really only tell you how good a person is at doing the specific tests. Being 'clever' depends on the task at hand and one can only be labelled such for that specific range of tasks. Nobody, I can think of, is clever at everything.