Anticlockwise, or counterclockwise is a circular direction around a central point, in the opposite direction to the way the hands on a clock turn. Anticlockwise goes towards the left.
Something is away from you if it is a distance from you, or is being removed from you. The man in the picture is walking away. Parents often take toys away from children as a punishment.
You bend something when you change it from being straight into a curve. Someone has bent the metal bar in the picture.
Clockwise is a circular direction around a central point, the same way the hands on a clock turn. Clockwise goes towards the right.
A detour is a path taken that goes out of the way of your usual path. Detours are usually set up when there is some obstacle and there needs to be a way around it. Used as a verb, it simply means you are taking a detour, for example "I am going to detour past the shops on my way home".
A line is diagonal if it is not straight up and down relative to things around it, or not horizontal or vertical. Diagonal lines are at an angle.
A direction is the way something is facing or moving. Most directions have names, like east, west, up, down, left or right.
Down is a direction. You go down when you go lower. The cat in the picture has just jumped down into a hole. The opposite of down is up.