| AEROSTAT | A balloon or airship |
| GASBAG | Container holding air in a balloon or airship |
| BLIMP | A large balloon or airship used for publicity or defence (5) |
| DIRIGIBLE | Navigable balloon or airship (9) |
| BURST | To pop a balloon or a bubble |
| POP | Something to do to a balloon or a wheelie |
| INFLATE | To blow up a balloon or a bicycle tire |
| HOTAIR | What a balloon or showoff is full of |
| THIBLE | First woman to fly in a free-floating hot-air balloon; or, a dialect word for a stick for stirring broth or porridge (6) |
| AVIATOR | Aeroplane or airship pilot (7) |
| ROSWELL | The place in New Mexico where the UFO crashed (or was it a weather balloon, or falling space junk or |
| ANCHOR | Device for mooring a boat or tethering a hot-air balloon; or, the person at the rear in tug-of-war (6) |
| FLIGHT | Series of steps, hurdles or canal locks; journey by balloon or through space; or, a flock of swallows (6) |
| ENVELOPE | Paper wrapper for a letter; the canopy of a hot-air balloon; or, in music, the "shape" of a sound |
| BALLAST | Weighted material for stabilising a ship or balloon; or, anything, real or figurative, that provides steadiness (7) |
| PILOT | From the Greek for "oar, rudder", word for one who steered a ship originally, later a person who operates an aircraft, balloon or hovercraft (5) |
| UFO | A weather balloon or shooting star might be mistaken for it: Abbr. |
| DEFLATE | To let the air out of a tyre, balloon or similar object (7) |
| PUMPS | Devices such as Archimedean screws, or pistons for inflating tyres or toy balloons; or, plimsolls (5) |
| TIRE | Balloon or snow follower |
