| OILWELL | Round island, left healthy source of fuel (3,4) |
| OILPUMP | Source of black stuff round island left by probe (3,4) |
| INKWELL | Imagine first couple had left healthy supply for writer (7) |
| GASWELL | Source of gold, also source of fuel |
| LIGNITE | Source of fuel left to burn |
| SEACOAL | Does it come from a main source of fuel? (3,4) |
| NUCLEAR | Source of fuel in cars is on (7,7) |
| COALPIT | Could be a topical source of fuel (4-3) |
| STAMINA | Power station stores a limited source of fuel? (7) |
| IGNITES | Missing source of fuel, head scout lights (7) |
| PEATBOG | Source of fuel, vegetable consumption, revolutionary energy (4,3) |
| BIOMASS | Man shortly to be surrounded by fish as source of fuel? (7) |
| EXAMINE | Look closely at what was once a source of fuel (7) |
| AMNESTY | Girl keeping house for junior doctor at island left by prisoners' friend (7,13) |
| SHALE | Introduction of secure, healthy, source of gas |
| WELLWELL | Healthy source of water? Fancy that! (4,4) |
| WELL | Healthy - source of water (4) |
| BLOOM | Prosperous time outside left healthy glow (5) |
| CATALINA | A nail to act as a substitute island left of California (8) |
| CONVENTIONAL | Religious community on holy island left according to custom (12) |
