make clean; remove dirt, marks, or stains from: clean your teeth properly after meals I cleaned up my room (as noun cleaning) Anne will help with the cleaning
clear: remove an obstruction or unwanted item or items from: the drive had been cleared of snow Carolyn cleared the table and washed up
For example, if the floor is cluttered with things such as toys and papers and whatnot, you can clearthe floor by removing everything from the room. However, all those things probably left dirt or stains about. Next, you would have to clean the floor to remove those.
i think that you normally use the verb "clean" to talk about removing dirt, stains and similar things from objects or surfaces; as you correctly said, "clear" indicates the removal of objects or obstructions; for example, if you say:i have cleaned the table
you're stating that the table was dirty before, and now it has been polished; if on the contrary you say:i have cleared the table
you are stating that it was encumbered with materials (it does not matter whether wanted or unwanted), which made it difficult to use it.
Clear means to remove stuff from something.
1) Clean: Assume a cop is examining a suspect for possessing illegal arms but nothing was found. Then he would report to his boss as:"He is clean boss
."2) Clear: In army generally, "all clear" is used to tell the status of a secured site."All clear, Go Go Go!!! or"Sector Clear, team B move ahead."