| ASTRONOMY | The study of celestial objects, originally as a means of timekeeping and navigation (9) |
| ALMS | Charitable donations to the poor, originally as a religious duty (4) |
| ERSE | Intrinsically not quiet, originally, as a language |
| PENDULUMS | They may be suspended from the works ___ on account of timekeeping? (9) |
| TARDINESS | Eats among sailors as a result of bad timekeeping (9) |
| MINUSCULE | Obstinate type describes elected American congressman originally as very unimportant (9) |
| CLEPSYDRA | Ancient timekeeping device commonly known as a water clock; from Greek, 'steal water' (9) |
| FERDINAND | Friend originally, as well as emperor |
| ASTRO | Prefix with physics for the study of celestial objects |
| PANEGYRIC | Repaying change collected originally as tribute |
| SCHEME | A diagram of the positions of celestial objects; a chart, outline or table; a systematic plan of action; or, a secret or underhand plot (6) |
| BRAIN | The hippocampus is the memory and navigation part of the ___ that looks like a seahorse |
| ASTRONOMICAL | Relating to the study of celestial bodies, it is extremely large (12) |
| PLANETARIUM | Building offering views of celestial objects and their movements, the one in Mallorca is located in Costitx in the centre of the island (11) |
| SYSTEM | Set of celestial objects connected by gravitational attraction; modus operandi; or, the human body as a whole (6) |
| ARCH | Structure forming part of a bridge or an aqueduct; or, a triumphal gateway, such as that designed by John Nash, originally as entrance to Buckingham Palace (4) |
| TITHE | Tenth of farm produce in a parish, taken originally as tax or contribution towards the church and clergy (5) |
| SCUD | Type of tactical ballistic missile developed by the Soviet Union during the Cold War, originally as the R-11 (4) |
| LAUD | Sing or speak the praises of, originally as an act of worship (4) |
| CALENDAR | Clear and well formed system of timekeeping (8) |
