What silly butchers do at their conference? (4,5)

I believe the answer is:

talk tripe

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'what silly butchers do' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'at their conference?' is the wordplay.
'at' is a charade indicator (letters next to each other).
'their' becomes 'tripe' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'conference?' becomes 'talk' (I've seen this in another clue).
'tripe' put after 'talk' is 'TALK TRIPE'.

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