Decorative accessory turning into a scarf (10)

I believe the answer is:

fascinator

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'decorative accessory' is the definition.
The definition suggests a singular noun which matches the answer.

'turning into a scarf' is the wordplay.
'turning' is an anagram indicator.
'into'+'a'+'scarf'='intoascarf'
'intoascarf' with letters rearranged gives 'FASCINATOR'.

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(Another definition for fascinator that I've seen is " Ladies' headdress".)

I've seen this clue in The Telegraph.

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