| ISOTROPE | From the Greek meaning "equal summer", a contour on a weather map linking points with the same average temperature in said season (8) |
| ISOTHERM | From the Greek meaning "equal heat", a contour line on a weather map joining places with the same temperature (8) |
| ISOBAR | Line on a map linking points of equal pressure (6) |
| ISOTHERE | In meteorology, a contour line on a weather map connecting points with equal mean summer temperature (8) |
| ISOBRONT | Meaning "equal thunder", a line on a weather chart connecting points of simultaneous storm development (8) |
| ISOPACH | In geology, a contour line on a map connecting points of equal stratigraphic thickness (7) |
| ISOBATH | A contour line on a map or nautical chart connecting points of equal underwater depth (7) |
| ISOGRAM | A word, such as "ambidextrously", with no repeating letters; or, a contour line connecting points registering the same value of some quantity (7) |
| PAIR | Meaning "equal", a set of two matching things forming a unit, such as binoculars, jeans, scissors, spectacles or tongs; or, a boat for a couple of sweep rowers (4) |
| DOGROSE | With pink flowers signalling an approaching summer, a wild climber found intertwined with brambles in hedgerows and woodland edges or with ripening fruit in the autumn (3,4) |
| HIMALAYA | Region with many high points, with "the" |
| ISOCHEIM | Line on map linking places with same mean winter temperature |
| CHERRY | Wild -; with heavy boughs of white blossom in the spring and edible fruits in the summer, a native tree of woodlands and old hedgerows, also called gean (6) |
| SCORING | Making points with the orchestration (7) |
| ERECTOR | The individual raising a point with the minister |
| AWESTRUCK | Filled with dread to a point with the multitude (9). |
| ISOPLETH | Line on a map connecting points with equal values of a particular atmospheric or geographic variable (8) |
| SAMBA | Penstemon 'Summer - - - - -', a cultivar sharing its name with a Brazilian dance (5) |
| ELEV | Abbr. on a contour map |
| BEASTS | Lead Belly and One Direction at The Point with The Animals? (6) |
