I think you might be misreading the meaning of this? If the person reviewing knows the language better than you, they they are hopefully less likely to tolerate "clever code", not more.
By "clever code" we're talking about weird unidiomatic tricks and hacks that maybe writes things in a slightly shorter or in a fractionally more (unnecessarily) optimised way, and makes you feel clever, but makes it harder and more time consuming for anyone else to understand what your code is doing, or verify that it's actually doing what it's supposed to.
By "clever code" we're talking about weird unidiomatic tricks and hacks that maybe writes things in a slightly shorter or in a fractionally more (unnecessarily) optimised way, and makes you feel clever, but makes it harder and more time consuming for anyone else to understand what your code is doing, or verify that it's actually doing what it's supposed to.