Real Dictionary

clear
A clear colour is bright and strong.
a clear space [...]
A clear substance is one which you can see through and which has no colour, like clean water.
a small simple room, as in a prison, convent, or monastery; cubicle [...]
If a surface, place, or view is clear, it is free of unwanted objects or obstacles.
adjective: If you are clear about something, you understand it completely.
adjective: If your mind or your way of thinking is clear, you are able to think sensibly and reasonably, and you are not affected by confusion or by a drug such as alcohol.
adjective: Something that is clear is easy to understand, see, or hear.
adjective: Something that is clear is obvious and impossible to be mistaken about.
verb: If something or someone clears the way or the path for something to happen, they make it possible.
verb: To clear your mind or your head means to free it from confused thoughts or from the effects of a drug such as alcohol.
verb: When you clear an area or place or clear something from it, you remove things from it that you do not want to be there.