Type of business. A variety of commercial and manufacturing uses may be permitted, provided that the requirements of this section are met. Included in this definition shall be offices for a physician, dentist, chiropractor, architect, engineer, land surveyor, landscape architect, realtor, certified public accountant, attorney, podiatrist, and similar professions requiring a license issued by the State of New York. Individual services, such as instruction in musical instruments limited to a single pupil at a time, financial services, insurance sales, barber, dressmaker, milliner, seamstress, cosmetologist, and similar services offering skilled services to clients or the public, shall be deemed included in this definition. The manufacture or production of crafts, furniture, machine parts, electronic parts, food items, or any nonexplosive or nonhazardous products for wholesale or retail sale shall be included in this definition. The retail sale of groceries to the public, dancing instruction, tea rooms, convalescent homes, and mortuaries shall not be deemed to be home occupations.