Usage patterns
〈事〉の名人a master of (an art, skill, or activity)
He is a master of cooking.
名人と呼ばれるto be called/known as a master
She is known as a master of calligraphy.
名人になるto become a master/champion
After long training, he became a shogi Meijin.
Expressions
名人は人を謗らずan accomplished person does not find fault with others; it is petty to criticize