Requisite bit of info about English team close to disaster (11)

I believe the answer is:

desideratum

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'requisite' is the definition.
(I know that desideratum is a type of requisite)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for desideratum that I've seen before include "As requirement" , "Something much wanted" , "Something much needed" , "Essential" , "Something needed or wanted" .)

I've seen this clue in The Times.

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