Uniformly gusty with change of direction (7)

I believe the answer is:

equally

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'uniformly' is the definition.
Both the definition and answer are adverbs. Maybe there's a link between them I don't understand?

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

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(Other definitions for equally that I've seen before include "To the same degree" , "Evenly" , "Fairly" , "In the same way" , "(Treat) without distinction" .)

I've seen this clue in The Globe and Mail.

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