1.
The ~ of something such as a book or argument is its quality of being well explained and easy to understand.
...the ease and ~ with which the author explains difficult technical and scientific subjects.
= lucidity
N-UNCOUNT
2.
Clarity is the ability to think clearly.
In business circles he is noted for his flair and ~ of vision.
N-UNCOUNT: oft N of n
3.
Clarity is the quality of being clear in outline or sound.
This remarkable technology provides far greater ~ than conventional x-rays.
= precision
N-UNCOUNT