Scamp or a scallywag's collared (6)

I believe the answer is:

rascal

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'scamp' is the definition.
(synonyms)

'or a scallywag's collared' is the wordplay.
'RASCAL' is hidden within the letters.
But, I'm uncertain how this is indicated.

Can you help me to learn more?

(Other definitions for rascal that I've seen before include "Rogue, scamp" , "Knave, rogue" , "Michievous person/child" , "naughty child" , "Impudent child" .)

I've seen this clue in The Daily Mail.

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