Case following punishment that's found on pitch (7,3)
I believe the answer is:
penalty box
'found on pitch' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'case following punishment' is the wordplay.
'case' becomes 'box' (boxing is a kind of casing).
'following' is a charade indicator (letters next to each other).
'punishment' becomes 'penalty' (synonyms).
'box' put after 'penalty' is 'PENALTY BOX'.
'that's' acts as a link.
Can you help me to learn more?
(Other definitions for penalty box that I've seen before include "area spotted?" , "Spot container" .)