Bound to tell you without beating about the bush (6)

I believe the answer is:

spring

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'bound' is the definition.
(both can mean to leap)

I cannot understand how the rest of the clue works.

(Other definitions for spring that I've seen before include "Resilient device" , "Leap at a well-head" , "Start season" , "Surrey supporter?" , "Does the house out thoroughly" .)

I've seen this clue in the Evening Standard.

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