| SHEERNESS | Verticality (of, eg, a cliff); town on Isle of Sheppey |
| DOVER | White cliffs town |
| TOBERMORY | Chief town on Isle of Mull (9) |
| RAMSEY | The second largest town on Isle of Man |
| ROTHESAY | Main town on Isle of Bute (*Tay shore) (8) |
| PLUMB | Weight, typically of lead, hung on a line to determine depth of water, verticality of an upright surface etc. (5) |
| ERECTNESS | Verticality of crest seen abroad |
| ISLE | Said of Sheppey, Dogs, Wight or Man? (4) |
| ELGOL | Village on shores of Loch Scavaig on Isle of Skye (5) |
| MOYCASTLE | Leaders of men surround a costly abandoned ruin on Isle of Mull (3,6) |
| IDIOM | Papers on Isle of Man, in a manner of speaking (5) |
| PLUMBLINE | A string with a metal weight at one end used to determine verticality, depth of water, etc |
| PLUMBBOBS | From the Latin for "lead", weights of said element or other metal placed at the ends of lines for determining verticality or the depths of water (5,4) |
| HOOKE | Robert -; polymath born on Isle of Wight who formulated the law of elasticity (5) |
| BEAUMARIS | Town with castle on Isle of Anglesey (9) |
| INVENTOR | Marconi for example on Isle of Wight holiday, forgetting a name |
| AYRE | Point of --, northernmost point on Isle of Man (4) |
| ALTITUDE | Dilute at 13's level of verticality (8) |
| REFERRAL | Passing on of, eg, a patient to a specialist |
| VICTIM | Sixth scan on Isle of Man casualty (6) |
