Bar on pitch sometimes jumped by miscreants (4)

I believe the answer is:

bail

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'bar' is the definition.
(bar on a cricket wicket)

I don't understand the rest of the clue.

(Other definitions for bail that I've seen before include "Piece placed on top of cricket stumps" , "Scoop water out of (a boat)" , "may be jumped" , "Piece of sporting apparatus" , "Topper for stumps" .)

I've seen this clue in The Times.

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