Advance sound that shows state of play (8,6)

I believe the answer is:

progress report

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'state of play' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see an association between them that I don't see?

'advance sound' is the wordplay.
'advance' becomes 'progress' (to progress is to advance).
'sound' becomes 'report' (report is a kind of sound).
'progress'+'report'='PROGRESS REPORT'

'that shows' acts as a link.

Can you help me to learn more?

I've seen this clue in The Daily Express.

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