Easy, foolish (6)
I believe the answer is:
simple
This clue is a double definition.
'easy' is the first definition.
(associated in meaning)
'foolish' is the second definition.
(thesaurus)
(Other definitions for simple that I've seen before include "Plant with medicinal properties" , "Effortless" , "Uncomplicated; herb" , "Penniless pie seeker" , "Easily done" .)