Refuse to agree that it's roomy? (4)

I believe the answer is:

deny

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'refuse' is the definition.
(I know that refuse can be written as deny)

I cannot understand how the remainder of the clue works.

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(Other definitions for deny that I've seen before include "Refuse to acknowledge" , "Reject as true" , "Refuse to grant" , "Controvert" , "contest" .)

I've seen this clue in the Evening Standard.

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