His white arm was roped with prominent veins, his finely made hands too stained ever to come clean.
come clean(with sb)(about sth);make a full and honest confession
Why don't you come clean and tell us your plans?
The criminal decided to come clean.
It's obvious you did it so you might as well come clean.
Now Waldemar, whyn't you come clean and tell him what's on your mind?
Chao Hsin-mei pressed the button to call the waiter to come clean up.