|  | HEIGHTS | Set out for the mountains, if you have one! (4,3,7) | 
|  | HEADFOR | Set out for the mountains, if you have one! (4,3,7) | 
|  | FEAROFHEIGHTS | It's a severe weakness in the mountains if the highest are off half-cocked (4.2.7) | 
|  | PLANE | Vehicle that will fly into a mountain if you switch your phone on below cruising altitude | 
|  | ANDES | . Danes set out for the mountains (5) | 
|  | KEA | Mauna ___ (highest mountain, if measured from its underwater base) | 
|  | EVEREST | Always the first to set out for the mountain (7) | 
|  | FLUSH | At poker, try not to do so when you have one! | 
|  | IDENTITYCARD | Marks you out at No 10 - if you have one they'll let you in! (8,4) | 
|  | ACE | If you have one up your sleeve, you have a secret advantage | 
|  | AXE | If you have one to grind, you have a score to settle | 
|  | SHUFTI | Higgledy-piggledy huts if you have one of these. Have a look! (6) | 
|  | EGO | Say nothing? Unlikely, if you have one (3) | 
|  | ANCHOR | If you have one it's possibly a fluke (6) | 
|  | LAWNMOWER | Grass shouldn't get too long if you have one keen cow, according to Spooner (9) | 
|  | ESTRANGE | Set off for the mountains, in order to alienate the others (8) | 
|  | ART | "Life beats down and crushes the soul, and ___ reminds you that you have one": Stella | 
|  | RANGE | That's strange! The saint has left for the mountains | 
|  | SKIPOLE | You have one for each runner, but it is all downhill from there (3,4) | 
|  | EWE | You have one week in which to find the animal (3) |