Hardened skin (6)
I believe the answer is:
callus
(Other definitions for callus that I've seen before include "Skin problem" , "This thick-skinned" , "A sore point" , "Corn" , "Area of hard skin" .)
I believe the answer is:
callus
(Other definitions for callus that I've seen before include "Skin problem" , "This thick-skinned" , "A sore point" , "Corn" , "Area of hard skin" .)