Clarity is where there is enough mental space to be able to clearly see what the mental and emotional process is that is occurring within us. Clarity also includes the ability to identify one’s beliefs in any situation.
For example it has the ability to look past one’s anger and see that we might have felt let down. But, so that it doesn’t keep happening we must also have the clarity to identify the expectation or belief that was underlying the reaction. So clarity is both emotional and mental awareness of what is happening within us.