Doesn't agree the brutes need reforming (6)

I believe the answer is:

rebuts

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'doesn't agree the' is the definition.
I can't tell whether this definition defines the answer.

'brutes need reforming' is the wordplay.
'need reforming' indicates an anagram (I've seen 'needing reform' mean this).
'brutes' with letters rearranged gives 'REBUTS'.

Can you help me to learn more?

(Other definitions for rebuts that I've seen before include "Disproves a claim" , "Disproves or refutes, perhaps evidence" , "Drives back" .)

I've seen this clue in The Globe and Mail.

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