Leave to enter a plea of guilt? (9)

I believe the answer is:

admission

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'guilt?' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for admission that I've seen before include "Statement acknowledging the truth of something" , "entry charge" , "guilty plea, perhaps" , "Anything conceded" , "guilt?" .)

I've seen this clue in The Globe and Mail.

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