Say something when lid's been left off spread (5)

I believe the answer is:

utter

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'say something' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

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(Other definitions for utter that I've seen before include "mouth" , "Express in speech" , "Say - complete" , "Express audibly" , "Express; complete" .)

I've seen this clue in The Irish Times.

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