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Miss the start of terrible telling off (6)

Ross

I believe the answer is:

earful

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'miss' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.

I cannot understand how the remainder of the clue works.

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(Other definitions for earful that I've seen before include "Informally, a strong reprimand of aural content" , "Prolonged and angry reprimand" , "Rocket" , "Reprimand (informal)" , "Large amount of verbal abuse" .)

I've seen this clue in The Independent.
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