Put up with mean scoundrel, shamefaced (7)
I believe the answer is:
hangdog
'shamefaced' is the definition.
(I know that shamefaced can be written as hangdog)
'put up with mean scoundrel' is the wordplay.
'put up' becomes 'hang' (I've seen this in another clue).
'with' says to put letters next to each other.
'mean scoundrel' becomes 'dog' (dog is a kind of scoundrel. I am not sure about the 'mean' bit.).
'hang'+'dog'='HANGDOG'
Can you help me to learn more?
(Other definitions for hangdog that I've seen before include "Downcast (expression)" , "Guilty-looking" , "Cowed, furtive" , "Browbeaten" , "Appearing ashamed" .)