| WATERFALLS | Cascades, or a hint to the molecule "stream" hidden in 3-, 8- and 33-Down |
| DROPPEDCALL | Weak signal result, and an apt description of a word hidden in 3-, 8-, 18- and 20-Down |
| MONOXIDE | Oxide containing just one atom of oxygen in the molecule (8) |
| MONOCYCLIC | Having one ring of atoms in the molecule |
| DNA | Brand name displaying the molecule of life (3) |
| UPPERMANAGEMENT | Top of an organizational chart, and a hint to the first words of 3-, 8- and 17- |
| TURNAROUNDTIME | Period needed to fulfill a request ... and a hint to words hidden in three long puzzle answers |
| NOTHINGTOHIDE | "I've told you everything!" - and a hint to what's embedded in 4-, 7-, 9-, and 33- Down |
| POTUS | Capital VIP, and a clue to what's hidden in three letters in each starred answer |
| THEIDESOFMARCH | Bad day for Julius, and a hint to what's hidden in three long answers |
| SUNBOW | Prismatic arc of colours as a result of the refraction of natural light shining through the mist or spray of a waterfall, cascade or fountain (6) |
| WATERFALL | Cascade or cataract, there is one between Bunyola and Alaro in Mallorca called Es Salt des Frau, though impressive after heavy rain it can dry up in the summer (9) |
| IVDRIPS | Hosp. fluid administration methods hidden in 3-, 9-, 31- and 34- |
| RAPIDS | Cascade or torrent in a stream (6) |
| COLORBARRIER | Obstacle represented abstractly by words split across rows 1, 3, 8, and 21 |
| NERVOUSWRECK | Epitome of anxiety ... or what's hidden in three puzzle answers? |
| TENEMENT | Block solders in 3 (8) |
| RUNDOWN | Seedy, and an apt description of a word hidden in 3-, 9-, 29- and 33-Down |
| AHEADOFONESTIME | Visionary, and a hint to what each word in 18- and 55-Across and 3- and 33-Down is |
| TRISECTS | Cuts in three (8) |
