Sort of nude matters sent low estimates (15)

I believe the answer is:

understatements

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'low estimates' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps you can see a link between them that I don't see?

'sort of nude matters sent' is the wordplay.
'sort of' indicates an anagram.
'nude'+'matters'+'sent'='nudematterssent'
'nudematterssent' is an anagram of 'UNDERSTATEMENTS'.

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I've seen this clue in the Sydney Morning Herald.

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