Brain part (8)
'brain part' is the definition.
('medulla' is part of 'brain')
This is the entire clue.
(Other definitions for medulla that I've seen before include "centre of organ" , "pith" , "Innards of organ" , "bit of brain" , "Lower part of the brain" .)
'brain part' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for cerebrum that I've seen before include "Principal part of brain in front of skull" , "not a whole loaf?" , "Principle part of brain, in front of skull" , "One thinks" , "Main part of the brain" .)