| WAVELENGTH | Property in physics typically measured from crest to crest or trough to trough |
| ENERGY | Kinetic and potential are two types of this property in physics (6) |
| TRANSCRIBE | Copy out letters from crest in bar |
| WILDEBEEST | Author taking plant round close to troughs for animal (10) |
| AZIMUTH | Angular position of an object on the celestial sphere, typically measured in degrees clockwise from true north (7) |
| MOTORIST | Driver would love to crest hill in fog (8) |
| BREADTH | Dimension of a nautical vessel, typically measured amidships, referred to as its beam (7) |
| YRS | Units in which ages are typically measured: Abbr. |
| KNAP | Get to crest of hill for night broadcast with news agency (4) |
| STAR | Appears above a country's crest to show they have won a World Cup. (4) |
| ONOMATOPOEIA | Maybe Buzz Aldrin's face supporting new moon crest to refit as periodical (12) |
| COMB | Crest to follow honey (4) |
| BIRDBATH | A basin or trough for birds to bath in (8) |
| CUBIT | Old unit of length measured from the elbow to the end of the middle finger, typically ranging from 18 to 22 inches (5) |
| MOTTO | Phrase on a coat of arms or crest; or, a quote prefacing a book or chapter (5) |
| MALINGER | Left one in the stable trough to avoid work (8) |
| AMPLITUDE | Maximum extent of a vibration or oscillation measured from a mean or zero point (9) |
| CHINE | Word, local to Dorset, Hampshire and the Isle of Wight, for a narrow ravine cut by a stream; an animal's backbone, as a joint for cooking; or, something projecting like said rachis, such as a crest or |
| COXCOMB | A court fool or jester's cap, named for its shape and colour, like a rooster's red crest; or, a dandy, fop or popinjay, who is conceited, foolish and vain (7) |
| SIGNET | Crest or monogram set into a ring, traditionally used with sealing wax to authenticate important documentsA (6) |