Fruits; mad (4)
I believe the answer is:
nuts
This clue is a double definition.
'fruits' is the first definition.
(nut is a kind of fruit)
'mad' is the second definition.
(I've seen this before)
(Other definitions for nuts that I've seen before include "Bonkers" , "Mad (slang)" , "Crazy (sl.)" , "Edible seeds with hard shells" , "Is butter" .)