Thick-skinned and unfeeling (7)

I believe the answer is:

callous

I believe this is a double definition.

'thick-skinned' is the first definition.
('callous' can be a synonym of 'thick-skinned')

'unfeeling' is the second definition.
('callous' can be a synonym of 'unfeeling')

'and' is the link.

(Other definitions for callous that I've seen before include "Hard-hearted" , "Emotionally hardened" , "Insensitive, cruel" , "Cruelly unfeeling" , "Cruel or unsympathetic" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app