| HOROLOGY | Art of making timepieces, or science of measuring time |
| HOROL | Science of measuring time: Abbr. |
| WATCHING | Selling timepieces or just a spectator (8) |
| HOROMETRY | Science or practice of measuring time by hours and subordinate divisions (9) |
| TECTONICS | From "builder", the study of the structure of Earth's lithosphere and crustal plates; or, the art or science of construction or architecture (9) |
| SECONDHAND | No new means of measuring time |
| MAP | From the Latin meaning "sheet of the world", any one of the many diagrammatic representations of Earth's surface created in the art or science of cartography (3) |
| BATHYMETRY | The science of measuring (sounding) the depths of seas and lakes (10) |
| MEDICINE | From "physician, doctor", word for the art or science of preserving and restoring health; or, a pharmaceutical analeptic, cure, drug or remedy (8) |
| PSYCHOMETRIC | To do with the science of measuring mental capacities and processes (12) |
| MUSIC | Art or science of euphony; a form of expression presided over by the mythological Greek Muse Euterpe (5) |
| RIGGING | Ship's cordage supporting its masts and sails; or, the art or science of adjusting a rowing boat and its oars according to its crew (7) |
| AGRICULTURE | The art or science of cultivating the ground, including the harvesting of crops (11) |
| ARISTOLOGY | An unusual word, from the Greek for "breakfast, lunch" plus "study", for the art or science of good eating and entire experience of dining (10) |
| AVIATION | Art or science of flying (8) |
| GASTRONOMY | Art or science of good eating |
| HORTICULTURE | The art or science of cultivating gardens (12) |
| ECOLOGY | Study of the environment or science of the union? (7) |
| AERONAUTICS | Art or science of flight (11) |
| DIDACTICS | The art or science of teaching (9) |
