Crossword Genius

Zoroastrian administrator with repetitive strain injury (5)

Ross

I believe the answer is:

parsi

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'zoroastrian' is the definition.
(I've seen this before)

I cannot understand how the rest of the clue works.

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(Other definitions for parsi that I've seen before include "Zoroastrianism adherent" , "Zoroastrian descendant; Persian dialect" , "Ancient Persian dialect" , "Member of a monotheistic Asian sect" , "non-Christian monotheist" .)

I've seen this clue in The Independent.
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