Crossword Genius

For each opera has it (3)

Ross

I believe the answer is:

per

'for each' is the definition.
(per person)

'opera has it' is the wordplay.
'has it' indicates a hidden word.
'PER' is hidden in the letters of 'opera'.

(Other definitions for per that I've seen before include "Preposition meaning for each" , "Preposition indicating by means of" , "For each or every" , "According to" .)

I've seen this clue in The Mirror.
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