| MOONS | Those of 20 Across are Phobos and Deimos. |
| MARS | Planet whose two moons are Phobos and Deimos (4) |
| HELENHUNT | Actor whose first name is an anagram of the first five letters of "lehenga": 2 wds. (Theme answer: The last word of this and 20-Across are associated with an inefficient way of using a computer keyboa |
| SOCCERBALLS | These items of gear for 20-Across are covered by 32 polygons (12 pentagons and 20 hexagons) |
| ARES | Father of Phobos and Deimos |
| SATELLITES | Phobos and Deimos, to Mars |
| SAILORMARS | Anime character allied with crows named Phobos and Deimos |
| MOONSOFMARS | Deimos and Phobos (5,2,4) |
| MOON | Phobos or Deimos |
| PHOBOS | Along with Deimos, one of the two moons of Mars (6) |
| DMS | Social media exchanges spelled in the consonants of "Deimos": Abbr. |
| DEIMOS | Companion of Phobos |
| PHI | First Greek letter in "Phobos" |
| FEAR | What "phobos" means in Greek |
| DOVETAILS | Synonym for interlocks formed by inserting an anagram of "et voila" into D _ _ _ _ _ _ _ S (Theme answer: The first word of this phrase is a bird and the second word is a homophone of the second word |
| SCHOOLOFHARDKNOCKS | Experiential learning idiom whose first, third, and fourth words are an academic establishment, the opposite of "soft," and a synonym for "raps on a door": 4 wds. (Theme answer: When the first word is |
| WESTSIDESTORY | 9/26/1957 Broadway debut featuring the consecutive songs found at the start of 20- Across, the middle of 25-Across and the end of 43-Across |
| BUILDINGCODE | Structural safety standards, and what the starts of 20-, 36- and 43- Across are doing? |
| LOOSEENDS | Final details to take care of ... and, literally, what the last words of 20-Across and 10- and 29-Do |
| TRAFFICLIGHTS | Signals using parts of 20 Across, 34 Across and 42 Across (13) |
