Jerk found (5)

I believe the answer is:

start

This clue is a double definition.

'jerk' is the first definition.
(I've seen this before)

'found' is the second definition.
(as in to establish)

(Other definitions for start that I've seen before include "Begin - opening move" , "begin an argument?" , "open" , "Beginning" , "launch" .)

I've seen this clue in The Telegraph.

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