Crossword Genius

Be heard as unoriginal (7)

Ross

I believe the answer is:

resound

I'm a little stuck... Click here to teach me more about this clue!

'be' is the definition.
Although both the answer and definition are verbs in their base form, I don't understand how one could define the other.

'heard as unoriginal' is the wordplay.
I cannot quite see how this works, but
'as' could be 'so' (I've seen this in other clues) and 'so' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for resound that I've seen before include "Reverberate" , "Echo" , "ring" .)

I've seen this clue in the Evening Standard.
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