Recuperate, we gather (5)

I believe the answer is:

rally

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

I don't understand how the rest of the clue works.

(Other definitions for rally that I've seen before include "Get-together" , "Recuperate in gathering" , "Call to arms - series of strokes" , "Revive - motoring contest" , "Recover health" .)

I've seen this clue in the Evening Standard.

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