Editing task from paid sportsman from county town (12)
I believe the answer is:
proofreading
'editing' is the definition.
(I know that proofreading is a type of editing)
'task from paid sportsman from county town' is the wordplay.
I cannot quite see how this works, but
'from' could be 'of' (of can mean from or belonging to) and 'of' is found in the answer.
'paid' could be 'pro' (I've seen this in other clues) and 'pro' is located in the answer.
'town' could be 'reading' (I've seen this before) and 'reading' is found in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for proofreading that I've seen is " Checking printed text for errors".)