Pour derision on loose dress — not small (4)

I believe the answer is:

mock

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'pour derision on' is the definition.
(to mock is to deride or pour scorn on)

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(Other definitions for mock that I've seen before include "Deride - false" , "Make fun of; imitation" , "Scoff at" , "Treat with contempt -- imitation" , "Not real, ridicule" .)

I've seen this clue in The Times.

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