Action on the pitch made public swoon (4,3)
I believe the answer is:
pass out
'swoon' is the definition.
(I know that swoon can be written as pass out)
'action on the pitch made public' is the wordplay.
'action on the pitch' becomes 'pass' (I can't explain this - if you can you should believe this answer much more).
'made public' becomes 'out' (out can mean known to the public).
'pass'+'out'='PASS-OUT'
Can you help me to learn more?
(Other definitions for pass out that I've seen before include "Graduate - faint" , "Faint - finish military training" , "In the army, do so having proved ready" , "Faint - or complete military training" , "Become unconscious" .)