Idiot appears regularly in Kansas
I believe the answer is:
ass
'idiot' is the definition.
(I've seen this before)
'regularly in kansas' is the wordplay.
'regularly in' means one should take alternating letters.
The alternating letters of 'kansas' are 'ASS'.
'appears' acts as a link.
(Other definitions for ass that I've seen before include "Trump's behind" , "Buffoon" , "Donkey or foolish person" , "Small hoofed animal" , "Stupid person or American bum" .)