Barber of a libretto (6)

I believe the answer is:

figaro

(Other definitions for figaro that I've seen before include "Mozart opera 'The Marriage of . . . . . .'" , "Wily barber" , "Rossini's barber; Mozart's major-domo" , "Operatic character" , "Hero of Mozart opera" .)

I've seen this clue in The Washington Post.

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