Netting one's jumping over successfully (8)

I believe the answer is:

clearing

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'netting' is the definition.
('clear' can be a synonym of 'net')

I cannot understand how the remainder of the clue works.

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(Other definitions for clearing that I've seen before include "Sort of bank" , "Absolving" , "one among trees" , "part of wood" , "Glade; declaring innocent" .)

I've seen this clue in the Evening Standard.

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