Prepares methodically again to frame rules in a different manner (12)

I believe the answer is:

reformulates

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'prepares' is the definition.
Although both the answer and definition are verbs in their -s form, I can't see how one could define the other.

'methodically again to frame rules in a different manner' is the wordplay.
'to frame rules' anagrams to 'REFORMULATES'.
However, I am not sure how this is indicated.

Can you help me to learn more?

I've seen this clue in The Hindu.

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