Grumble without Mike, say (5)

I believe the answer is:

utter

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'grumble' is the definition.
(I know that grumble is a more specific form of the action the utter)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for utter that I've seen before include "Prize" , "Total < state" , "Declare - total" , "Make sounds (but not necessarily words)" , "State - unqualified - rank" .)

I've seen this clue in The Telegraph.

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