Crossword Genius

Injustice displayed by brunette? (10)

Ross

I believe the answer is:

unfairness

'injustice' is the definition.
('unfairness' can be a synonym of 'injustice')

I don't understand how the rest of the clue works.

(Other definitions for unfairness that I've seen before include "Inequity" , "Discrimination" , "quality of a brunette might you say?" .)

I've seen this clue in The Independent.
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