Popcorn unit (6)
I believe the answer is:
kernel
(Other definitions for kernel that I've seen before include "Central or most important part" , "Edible seed of nut" , "Inner part of nut" , "bit of a nut" , "Essence" .)
I believe the answer is:
kernel
(Other definitions for kernel that I've seen before include "Central or most important part" , "Edible seed of nut" , "Inner part of nut" , "bit of a nut" , "Essence" .)