Get better of exchanges in court (5)

I believe the answer is:

rally

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'get better' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for rally that I've seen before include "Call to arms - series of strokes" , "Recover health" , "motoring event" , "Recover; sequence of shots" , "Motor sport event" .)

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

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