A case of 'hit and run' involving children (8)
I believe the answer is:
rounders
'a case' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'of hit and run involving children' is the wordplay.
I cannot really see how this works, but
'of' could be 'o' and 'o' is present in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'run' could be 'r' (cricket abbreviation) and 'r' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for rounders that I've seen before include "Game similar to baseball" , "Local form of American baseball" , "Baseball for kids?" , "Game played with bat and ball" , "Game resembling baseball" .)