| CAIRN | A pile of stones that marks a boundary or top of a mountain (5) |
| HEDGE | Row of bushes that mark a boundary |
| CREST | The top of a wave or top of a mountain (5) |
| LIMIT | A boundary or bound, as of a country, area, or district. (5) |
| COAT | A fleece, pelage or pelt; or, any other outer covering, such as an application of paint/varnish, blanket of dust, husk of a seed, jacket, layer of a bulb or top of a suit of armour (4) |
| FRONT | A seaside promenade; the dickey of a shirt traditionally worn with a dinner jacket; or, the dividing boundary or transition zone between two meteorological air masses (5) |
| FENCE | Boundary or divisional wooden panels or strips in a row (5) |
| OUNCE | It adds little weight to heart of stone that uncle hasn't got long (5) |
| OKINA | Symbol resembling an apostrophe that marks a glottal stop, as in "Hawai'i" |
| VISTA | There might be a good one on top of a mountain |
| IDRIS | Welsh legendary giant whose chair is the top of a mountain in Wales (5) |
| LOGAN | One of the Stones that rocks? (5) |
| STELA | Given here as the alternative spelling, what is an upright pillar of stone that bears an inscription |
| CLIMB | Go up like someone trying to reach the top of a mountain |
| TONES | Flat stones that shone weirdly (5) |
| HONES | Flat stones that shone weirdly (5) |
| SLUNG | Threw stones that hung loosely (5) |
| YODEL | Sing at the top of a mountain, maybe |
| OPALS | Stones that diffract light |
| COPPIN | Dialect for the crest or top of a hill; or, a conical mass of thread on a spindle, possibly tump-shaped (6) |