Roguish man gets out of parade (4)

I believe the answer is:

arch

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

I cannot understand how the rest of the clue works.

(Other definitions for arch that I've seen before include "Marble, for example" , "Foremost" , "Coyly playful" , "Chief: crafty" , "Roguish - chief - supporter" .)

I've seen this clue in The Hindu.

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