Stir — this? (8)
I believe the answer is:
porridge
This might be a double definition.
'stir' is the first definition.
(both can mean prison time)
'this?' is the second definition.
The definition suggests a singular noun which matches the answer.
Can you help me to learn more?
(Other definitions for porridge that I've seen before include "Breakfast of boiled oatmeal and milk" , "Eat for breakfast in prison" , "Stir" , "that's served at Her Majesty's pleasure?" , "Breakfast food - prison term" .)