Approve of what twit here can be seen to do (4,4)

I believe the answer is:

hold with

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'approve of' is the definition.
(thesaurus)

'what twit here can be seen to do' is the wordplay.
I cannot really see how this works, but
'be' could be 'hold' (holding is a kind of being) and 'hold' is found in the answer.
The remaining letters 'with' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Telegraph.

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