| LAKENASSER | 83% of a vast reservoir in southern Egypt and northern Sudan |
| NASSER | Lake ____, vast reservoir in southern Egypt and northern Sudan (6) |
| GAZEBO | Summerhouse is roughly 83% double-glazed, polished, but not dull (6) |
| NUBIA | Ancient region of north-east Africa, now part of southern Egypt and northern Sudan (5) |
| NUBIANS | Natives of southern Egypt and northern Sudan (7) |
| NUBIAN | Inhabitant of a region now comprising parts of northern Sudan and southern Egypt |
| ABUSIMBEL | A former village in southern Egypt; site of two temples of Rameses II (3,6) |
| LUXOR | City on the Nile in southern Egypt, on the site of ancient Thebes (5) |
| ASWANHIGHDAM | Construction on the Nile, in southern Egypt (5,4,3) |
| ASWAN | An ancient city in southern Egypt (pop abut 1.6 million) (5) |
| HOLKHAM | Village in Norfolk that is the site of a vast Palladian-style house built to designs by William Kent, Matthew Brettingham and their patron Thomas Coke, 1st Earl of Leicester (7) |
| NOSES | Whether discerning the bouquet in the wine, the orange in marmalade shred, the pine scent in the trees or the turkey of a vast Christmas spread, they are rhinal snoots or hooters, often glowing Rudolp |
| WADIHALFA | City in Northern Sudan on the shores of Lake Nubia |
| WOOMERA | Aboriginal spear-throwing device; or, a town north of Adelaide, site of a vast military testing grou |
| STV | It began broadcasting in 1957 as part of a vast venture (1,1,1) |
| GRAVITAS | Weight of a vast rig in ruins (8) |
| EURASIAN | Of a vast northern-hemisphere landmass (8) |
| HIMALAYA | Of a vast Asian mountain range (8) |
| SATNAV | Director of a vast production incorporating any number (6) |
| AEONIAN | Of a vast age or eternity (7) |