New opera in natural setting (7)
I believe the answer is:
openair
'natural setting' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'new opera in' is the wordplay.
'new' indicates an anagram.
'opera'+'in'='operain'
'operain' with letters rearranged gives 'OPENAIR'.
Can you help me to learn more?
(Other definitions for openair that I've seen before include "Outdoor" , "taking place out of doors" .)