Cornmeal concoction (7)
I believe the answer is:
polenta
'cornmeal concoction' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for polenta that I've seen before include "Italian maize paste" , "Friulian foodstuff" , "Italian porridge usually of maize" , "Maize flour dough" , "thick mush" .)