It can break stuff up to make them sound more substantial (6)

I believe the answer is:

grater

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'it can break stuff up to make them sound more substantial' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

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(Other definitions for grater that I've seen before include "Utensil for reducing to small particles" , "See 1" , "kitchen instrument" , "Kitchen utensil" , "Kitchen implement (for cheese, nutmeg, etc.)" .)

I've seen this clue in The Irish Times.

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