Crossword Genius

Way around mountainside verges (4)

Ross

I believe the answer is:

mode

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'way' is the definition.
(I know that way can be written as mode)

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

Can you help me to learn more?

(Other definitions for mode that I've seen before include "Manner, style" , "Trend" , "Way of doing something" , "Fashion; manner" , "Fashion; way of performing" .)

I've seen this clue in the Sydney Morning Herald.
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