So far as I'm concerned, I'm having no dubbing (8,3,6)

I believe the answer is:
speaking for myself
'i'm concerned i'm having no dubbing' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'so far as' is the wordplay.
I cannot really see how this works, but
'as' could be 'in' (I've seen this in other clues) and 'in' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution?
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