Crossword Genius

Core (6)

Ross

'core' is the definition.
(I know that core can be written as kernel)

This is all the clue.

(Other definitions for kernel that I've seen before include "Inner part of a seed, the heart of the matter" , "Single cereal grain" , "Core of a nut" , "Edible seed of nut" , "Essence" .)

I've seen this clue in the Newsday, The Telegraph, The Guardian, The Mirror, the Penny Press, the Evening Standard and The Sun.
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