A clockmaker is a person who designs, builds, repairs, and maintains clocks. The two crossword solutions for the term clockmaker are HOROLOGIST (10 letters) and horologer (9 letters). Horologists specialize in the science of measuring time, while horologers focus on the craftsmanship of creating and repairing clocks. Both professions require a great deal of skill and knowledge in order to create accurate and reliable timepieces.