More clearer - clearer already means 'more clear', so this would be like saying 'more more clear', which is incorrect. More clearest - clearest already means the 'most clear', and you can't get and clearer than that, so you cannot have 'more most clear'.What is clear vision?
Clear vision means seeing a big picture and all the parts that make up the big picture. By understanding the way things work - or don’t work - a leader can make big decisions about how to move forward. Their vision should also enable them to encourage individuals towards goals that benefit the entire organization.