Almond or cashew (3)
I believe the answer is:
nut
This clue is a double definition.
'almond' is the first definition.
(almond is a type of nut)
'cashew' is the second definition.
(I've seen this in another clue)
(Other definitions for nut that I've seen before include "Vegetarian food" , "Enthusiastic person" , "Hard kernel of minutiae" , "1A [CRACKPOT]?" , "Hard edible seed" .)