Is it a condition for the preacher or Sheikh to be elegant?

The caller to Allah should have a good appearance and a pleasant scent, because that is more conducive to the acceptance of his call. This was also the state of the Prophet, peace and blessings be upon him, who was the most pleasant in scent and the most handsome in appearance, and he commanded the honoring of hair and the wearing of white garments. This emphasizes Islam's concern for outward appearance without extravagance. Callers to Allah are the foremost people in following this guidance. However, if a caller is unable to achieve this, he should not conceal his knowledge or cease his call; rather, he should call with knowledge and insight.