| 100% | TIDAL | 5 | Formed by inflow and outflow |
| 52% | FORGE | 5 | Form by heating and hammering |
| 48% | SANTEE | 6 | River formed by the Congaree and Wateree |
| 47% | HAIM | 4 | Pop band formed by Alana, Danielle and Este |
| 47% | COLDPLAY | 8 | Band formed by Chris Martin and university friends |
| 47% | ESTER | 5 | Chemical formed by alcohol and acid |
| 46% | ELL | 3 | Shape formed by an extended thumb and index fingers |
| 46% | WESER | 5 | River formed by the junction of the Fulda and Werra |
| 46% | SHOULDER | 8 | It is formed by bones such as clavicle and scapula |
| 45% | OPAL | 4 | "Steven Universe" character formed by the fusion of Amethyst and Pearl |
| 44% | WHAM | 4 | English musical duo formed by George Michael and Andrew Ridgeley in 1981 |
| 44% | OFGEM | 5 | Non-ministerial government department formed by the merger of OFFER and Ofgas |
| 44% | ORION | 5 | Constellation whose belt is formed by the stars Alnitak, Alnilam, and Mintaka |
| 44% | BOTTOMLINE | 10 | Essential point (or what's formed by 50-, 51- and 53-Across) |
| 44% | SHOESTRING | 10 | Minimal budget (or what's formed by 12-, 13- and 14-Across) |
| 43% | BYRDS | 5 | The —, 1960s rock group formed by Jim McGuinn, David Crosby and Gene Clark |
| 43% | GIRONDE | 7 | Estuary in France formed by the confluence of the Rivers Dordogne and Garonne |
| 43% | HUMBER | 6 | Large tidal estuary in northern England formed by the Rivers Ouse and Trent |
| 43% | PELVIS | 6 | Large funnel-shaped structure formed by the hipbones, sacrum and coccyx in man |
| 43% | SMILE | 5 | Original band formed by Brian May and Roger Taylor before Freddie Mercury joined |
| 43% | GRANDMAL | 8 | Form of epilepsy characterised by loss of consciousness and violent convulsions |
| 42% | ALCHEMY | 7 | Activity associated with the word ladder formed by 1-, 10-, 70- and 72-Across |
| 42% | YAZOO | 5 | River in Mississippi, US, formed by the confluence of the Tallahatchie and Yalobusha Rivers |
| 42% | SECONDSTOMARS | 13 | 30 ___, an American rock band formed by brothers Shannon and Jared Leto: 3 wds |
| 42% | SHATTALARAB | 11 | River in SE Iraq formed by the confluence of the Tigris and Euphrates Rivers |
| 42% | THEBEATLES | 10 | British rock band formed by John Lennon and 19-Across in 1960 (2 wds.) |
| 42% | VEGA | 4 | The Summer Triangle is formed by the bright stars Altair, Deneb and this star |
| 42% | IOWA | 4 | Its eastern and western borders are formed entirely by rivers |
| 42% | IOWA | 4 | Its east and west borders are formed entirely by rivers |
| 41% | WOODROW | 7 | Given name of actor Harrelson (or what's formed by 29-, 32- and 34-Across) |