Record over last bit of Don't Look Back In Anger - it can reduce the buzzing sound (9)
I believe the answer is:
petrolage
'it can reduce the buzzing sound' is the definition.
The definition suggests a singular noun which matches the answer.
'record over last bit of don't look back in anger' is the wordplay.
'record over last bit of don't' becomes 'pet' (I can't justify this - if you can you should believe this answer much more).
'look' becomes 'lo'.
'back' says the letters should be written backwards.
'in' indicates putting letters inside.
'anger' becomes 'rage' (rage is a kind of anger).
'lo' written backwards gives 'ol'.
'ol' going within 'rage' is 'rolage'.
'pet'+'rolage'='PETROLAGE'
Can you help me to learn more?