Composition refers to the organization, arrangement, and combination of objects within the borders of a drawing space. For a great drawing, you want to bring the eyes of the viewer toward your center of interest within an aesthetically pleasing composition.
The idea that clockwise motion represents the forward motion of time so powerful that it's hard to look at such a watch or clock without having the slightly unsettling feeling that time is running backwards.
Wind changes direction either by veering or backing. A wind that veers is changing its direction to your right as you face it. A wind that backs changes directions to your left. A veering wind suggests fair or improving weather (in the northern hemisphere due to clockwise rotation of high pressure areas).