Is eating it a punishment? (5)
I believe the answer is:
gruel
'punishment?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for gruel that I've seen before include "Unappetising food" , "Thin food of boiled oatmeal" , "Thin liquid food" , "sloppy fare" , "Luger (anag)" .)