Armadillo accommodated by prefect at Oundle (5)

I believe the answer is:

tatou

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'armadillo' is the definition.
(tatou is a kind of armadillo)

'accommodated by prefect at oundle' is the wordplay.
'TATOU' is hidden in amongst the letters.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Another definition for tatou that I've seen is " American resident carrying plates".)

I've seen this clue in The Times.

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