Madrid opera arranged historical show (6,5)

I believe the answer is:

period drama

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'historical show' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'madrid opera arranged' is the wordplay.
'arranged' indicates an anagram (letters rearranged).
'madrid'+'opera'='madridopera'
'madridopera' anagrammed gives 'PERIOD DRAMA'.

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I've seen this clue in The Times.

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