Praline ingredient (5)
I believe the answer is:
pecan
'praline ingredient' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pecan that I've seen before include "Pinkish-brown nut used in American pie" , "Nut of American hickory tree" , "Something like a walnut" , "Oval nut of south central United States" , "Smooth pinkish-brown nut, nice in pie" .)