Some tribune qualities are not fair (7)

I believe the answer is:

unequal

'not fair' is the definition.
(I've seen this before)

'some tribune qualities are' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'UNEQUAL' is hidden within 'tribune qualities are'.

(Other definitions for unequal that I've seen before include "Not well matched or even" , "Dissimilar" , "Poorly balanced or matched" , "Differing" , "Disproportionate" .)

I've seen this clue in The Irish Times.

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