Familiar moniker — quiet orbs (anag) (9)

I believe the answer is:

sobriquet

(Other definitions for sobriquet that I've seen before include "Person's nickname" , "dubious name" , "Nickname -- Boers quit (anag)" , "A different name" , "Byname -- Boers quit (anag)" .)

I've seen this clue in The Guardian.

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