| ISOTOPE | Natural element, one very much on the surface before end of June (7) |
| EGGSPOON | Useful for cracking the surface before a dip at breakfast time (3,5) |
| SINCERE | ... because R before end of June is genuine (7) |
| EXPLODE | Set off with former tramp before end of June (7) |
| NOISOME | Disgusting number one -- very much my sort of thing (7) |
| OVEREGG | Exaggerate too much on the subject of, say, golf (7) |
| HABITAT | Natural element of a crumb stuck in bearskin, say (7) |
| REFUGEE | Asylum, before end of June, for fugitive (7) |
| RESTORE | Reconstruct roster before end of June (7) |
| IRIDIUM | Element - one free at institute for all to see by beginning of the month (7) |
| VIOLATE | Break agreement by mixing oil in large vessel before end of June |
| GIOCOSO | Game company bringing in one very much in cheerful style (7) |
| ISOLATE | One very much behind time put in solitary confinement (7) |
| OVERLAP | Find too much on the circuit that coincide (7) |
| CLUTTER | Disordered heap; a mare's nest; a group of cats; or, radar disturbance caused by chaff or natural elements such as rain, birds or the sea (7) |
| NIOBIUM | Chemical element, one of the transition metals (7) |
| ISOZYME | Protein, one very much unknown, with unknown mass and energy |
| EROSION | In geology, the process caused by wind, water flow or other natural elements, also called denudation |
| URANIUM | Element one university found in nearly all fresh manure (7) |
| THORIUM | Radioactive element, one of two elements named after Norse gods |
