Lit out from Lake District -- if confused, divert

I believe the answer is:

sidetrack

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'divert' is the definition.
(sidetracking is a kind of diverting)

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

(Other definitions for sidetrack that I've seen before include "Divert" , "Provide diversion" , "Distract (from big issue)" , "small way" , "lead away" .)

I've seen this clue in The Telegraph.

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