Eccentric in opera, outdoor (7)

I believe the answer is:

openair

'outdoor' is the definition.
(I've seen this before)

'eccentric in opera' is the wordplay.
'eccentric' indicates anagramming the letters.
'in'+'opera'='inopera'
'inopera' anagrammed gives 'OPENAIR'.

(Other definitions for openair that I've seen before include "taking place out of doors" , "Outdoor" .)

I've seen this clue in The Daily Express.

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