A Horse Handler is someone who takes care of horses, and there are two main roles associated with this job: an OSTLER (6 letters) and a GROOM (5 letters). An OSTLER is responsible for the day-to-day care of horses, such as feeding, grooming, and exercising them. A GROOM is responsible for more specialized tasks, such as preparing horses for shows or races, and providing medical care. Both roles require a deep understanding of horse behavior and a strong commitment to animal welfare.