What direction is 45 degrees in clockwise from due east?

Since you requested I answer this, I will do my best, but I'm not sure I can explain it well. 

45° clockwise from due east is just 45° from the east. Moving clockwise, which is the direction the hands of a clock move, you're going to the south, and since it's by 45°, you're halfway between east and south, so you're southeast.