Countermands orders I've circulated (9)

I believe the answer is:

overrides

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'countermands' is the definition.
Although both the answer and definition are verbs in their -s form, I cannot see how they can define each other.

'orders i've circulated' is the wordplay.
'circulated' is an anagram indicator.
'orders'+'ive'='ordersive'
'ordersive' with letters rearranged gives 'OVERRIDES'.

Can you help me to learn more?

(Another definition for overrides that I've seen is " Is more important than".)

I've seen this clue in The Independent.

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