Guilt-ridden (7)
I believe the answer is:
ashamed
'guilt-ridden' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ashamed that I've seen before include "Feeling bad, having done something wrong" , "Embarrassed and Contrite" , "hanging his head" , "Feeling bad after unworthy action" , "He's Adam (anag.)" .)