Playing finale, soloist's state of personal withdrawal (4-9)

I believe the answer is:

self-isolation

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'state of personal withdrawal' is the definition.
The definition suggests a singular noun which matches the answer.

'playing finale soloist's' is the wordplay.
'playing' indicates anagramming the letters.
'finale'+'soloist'='finalesoloist'
'finalesoloist' with letters rearranged gives 'SELF-ISOLATION'.

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I've seen this clue in The Independent.

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