Having told a story, have to rest (3,4)

I believe the answer is:

lie down

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

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

(Other definitions for lie down that I've seen before include "Short rest on a bed" , "Recline" , "Put your feet up" , "Now idle (anag) -- short rest" , "Rest in a horizontal position" .)

I've seen this clue in The Times.

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