kt17 - this is definitely something of a grey area. Azed (a lexicographer by profession) is scrupulously accurate when it comes to the syntax of his clues, but not having to satisfy a crossword editor means that in other respects he can give himself a certain latitude that might not be afforded to other setters of barred puzzles. He does like to dip into foreign languages, particularly French, and may go a little beyond the standard crossword fare, as in this clue for CRIERS:
News broadcasters en------ were of use to French writers once?
He has, inevitably, clued certain words many times over, and always tries to find a new treatment whenever a word resurfaces. Some of his more inventive efforts would be rejected by many crossword editors; here I think it is possible to argue that 'Such as Verdi' could lead to GREEN, but I suspect that the Listener Crossword editors, for instance, would not be convinced.