Reckless dictator’s wives collectively spook the people? (5-6)

I believe the answer is:

harum-scarum

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

I cannot understand how the rest of the clue works.

(Other definitions for harum-scarum that I've seen before include "Cheerfully irresponsible" , "Wild and reckless" , "Reckless, impetuous" , "Wild and thoughtless" , "Rash" .)

I've seen this clue in The Times.

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