Stopped and relaxed after a run (8)

I believe the answer is:

arrested

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But I can't explain it at all! Could you help me understand?

(Other definitions for arrested that I've seen before include "Detained by legal authority" , "Seized and took into custody" , "Apprehended by police" , "Stopped or slowed down progress" , "Taken into custody, being serrated" .)

I've seen this clue in The Telegraph.

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