Eccentric dating serene actresses (12)

I believe the answer is:

tragediennes

'actresses' is the definition.
(tragedienne is a kind of actress)

'eccentric dating serene' is the wordplay.
'eccentric' indicates anagramming the letters.
'dating'+'serene'='datingserene'
'datingserene' with letters rearranged gives 'TRAGEDIENNES'.

I've seen this clue in The Times.

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