Terse report from survivor is out of control (4)

I believe the answer is:

amok

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'is out of control' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for amok that I've seen before include "In an uncontrolled, often violent, way" , "Must run it" , "Berserk" , "going wild" , "Running wild" .)

I've seen this clue in The Sun.

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