In surveying, the horizontal angle of a bearing clockwise from a standard direction (7)
I believe the answer is:
azimuth
(Other definitions for azimuth that I've seen before include "Horiz. angle (of compass bearing)" , "Arc of the sky from zenith to horizon" , "Angular distance (in astronomy etc)" , "Horizontal angle of a bearing clockwise from the north" , "Angle flat out" .)