Shouts ungraciously, partially defeated in choir competition? (7)

I believe the answer is:

outsung

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'choir competition?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.

'shouts ungraciously partially defeated' is the wordplay.
'OUTSUNG' is hidden in amongst the letters.
But, I am uncertain how the hidden word is indicated.

'in' is the link.

Can you help me to learn more?

I've seen this clue in The Times.

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