What does an excellent scholar mean?

It means a skilled calligrapher.

"Qiaoshi" usually refers to a person who has outstanding talent in calligraphy art, is good at writing, drawing and designing words, and can express his thoughts and feelings with exquisite skills. This word usually contains commendatory meaning, expressing praise and reverence for such a person.

"A clever woman can't cook without rice" can also refer to a talented person with superb skills who can turn the tide. This kind of people usually have high technical ability, are good at innovation and problem solving, and can show excellent results in work and study.