Crossword Genius

Scamp is unlike the others of his breed (5)

Ross

I believe the answer is:

rogue

I'm a little stuck... Click here to teach me more about this clue!

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

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

Can you help me to learn more?

(Other definitions for rogue that I've seen before include "Bad person" , "Scoundrel, knave" , "one behaving atypically" , "Prankster" , "Profligate" .)

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