Disreputable person some consider as callous (6)

I believe the answer is:

rascal

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

'disreputable person' is the definition.
'rascal' can be an answer for 'person' (rascal is a kind of person). I am not certain of the 'disreputable' bit.

'some consider as callous' is the wordplay.
'some' says the answer is hidden in the clue (some parts of the word are used).
'RASCAL' is hidden within 'consider as callous'.

Can you help me to learn more?

(Other definitions for rascal that I've seen before include "A scoundrel or scamp" , "Rogue of a lascar" , "Brat" , "Scallywag" , "Villain" .)

I've seen this clue in The Times.

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