To this, did Smollett show favouritism? (4)

I believe the answer is:

bias

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

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

(Other definitions for bias that I've seen before include "Unfairly influence" , "colour" , "Large city in Florida" , "(Bowls) irregular shape" , "Prejudiced or weighted opinion" .)

I've seen this clue in the Evening Standard.

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