Don sackcloth and ashes and tear around Peru (6)
I believe the answer is:
repent
'don sackcloth and ashes' is the definition.
I can't judge whether this defines the answer.
'tear around peru' is the wordplay.
'tear' becomes 'rent' (rent is a kind of tear).
'around' is an insertion indicator.
'peru' becomes 'pe'.
'rent' placed around 'pe' is 'REPENT'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for repent that I've seen before include "Feel remorse for" , "Be contrite, ye sinners" , "Be ashamed" , "Feel sorry" , "Express remorse for sin" .)