Pie variety (5)
I believe the answer is:
pecan
'pie variety' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for pecan that I've seen before include "Something like a walnut" , "Nut with sweet oily kernel" , "Edible nut like a smooth walnut" , "Type of nut" , "Nut of American hickory tree" .)