Non-standard language changed in the end showing bias (5)

I believe the answer is:

slant

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'bias' is the definition.
(I know that slant is a more specific form of the action bias)

I can't explain the rest of the clue.

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(Other definitions for slant that I've seen before include "Angle; incline" , "Slope - bias" , "passing breeze?" , "It's at an angle to the horizontal" , "Slope, lean" .)

I've seen this clue in The Times.

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