Pulling the wool over another scratching in the string section (2,3,6)
I believe the answer is:
on the fiddle
'section' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'pulling the wool over another scratching in the string' is the wordplay.
I cannot really see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is present in the answer.
'over' could be 'on' (physically on top of) and 'on' is found in the answer.
'string' could be 'fiddle' (fiddle is a kind of string) and 'fiddle' is present in the answer.
The remaining letters 'he' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for on the fiddle that I've seen before include "Engaged in cheating" , "leader of the orchestra?" , "Running a racket" , "Cheating (colloq.)" , "Involved in swindling" .)