| TRACEELEMENT | Cobalt in the |
| BESSEMERPROCESS | Rejected pickle in ale and cobalt in squash - technique employed in Sheffield? |
| SCOURGE | Cobalt in stream is cause of affliction (7) |
| TRACEELEMENTS | The tiny quantities of zinc, manganese or cobalt, for example, needed in human nutrition (5,8) |
| BALTIC | Exchange the Sea for one-nothing in cobalt, maybe (6) |
| CHEVROLETCRUZE | GM compact that replaced the Cobalt |
| NOXZEMA | Cream in a cobalt blue jar |
| LABCOAT | Experimental gear in a cobalt mixture |
| JACOB | Name the vaccine containing cobalt (5) |
| SKYY | Vodka in a cobalt blue bottle |
| IRON | Cobalt's neighbor on the periodic table |
| KAVANAGH | Flemington trainer whose ban for cobalt doping was overturned in 2017, Mark ... (8) |
| ARSENIC | A toxic metalloid element; a by-product of the smelting of copper, lead, cobalt and gold ores (7) |
| BLUE | Colour whose natural sources include azurite, cobalt, lapis lazui and the plants woad and indigo (4) |
| MONET | Artist who created paintings of his garden and water lilies in Giverny with a palette that included cobalt violet, French ultramarine, rose madder lake and viridian (5) |
| CASTLE | Cobalt skies, for a change, in Sutherland home of 16Ac - see 25ac (5,6) |
| SKIBO | Cobalt skies, for a change, in Sutherland home of 16Ac - see 1ac (5,6) |
| ISOTOPE | Carbon 12 or cobalt 60 |
| COLOR | Cobalt |
| ISOTOPES | Cobalt 60 and iodine 131, e.g. |