Audition viably arranged, characteristic of a certain event (14)

I believe the answer is:

unavoidability

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'characteristic of a certain event' is the definition.
The definition suggests a singular noun which matches the answer.

'audition viably arranged' is the wordplay.
'arranged' indicates anagramming the letters (letters rearranged).
'audition'+'viably'='auditionviably'
'auditionviably' with letters rearranged gives 'UNAVOIDABILITY'.

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I've seen this clue in The Guardian.

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