A team I can get cross with (6)

I believe the answer is:

eleven

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'a team' is the definition.
(I know that eleven is a type of team)

I can't explain the rest of the clue.

(Other definitions for eleven that I've seen before include "Time for morning coffee" , "'Legs' bingo number" , "Footballers" , "Number, on a team maybe" , "Enough for a soccer side" .)

I've seen this clue in the Evening Standard.

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