Expiated (6)
I believe the answer is:
atoned
'expiated' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for atoned that I've seen before include "Made reparation (for)" , "Donate (anag)" , "Made up for past wrong" , "Made up for, say injury" , "Made up for past wrongdoing" .)