Really hurts (6)
I believe the answer is:
smarts
(Other definitions for smarts that I've seen before include "Stings, sounding clever" , "that Sting does" , "Hurts; stings" , "Stings painfully" , "Feels upset and annoyed" .)
I believe the answer is:
smarts
(Other definitions for smarts that I've seen before include "Stings, sounding clever" , "that Sting does" , "Hurts; stings" , "Stings painfully" , "Feels upset and annoyed" .)