| TENNIEL | Illustrator of bird in flight crossing head of estuary |
| VEE | Formation of birds in flight |
| REALIST | One who takes a practical view of new trails round head of estuary (7) |
| IGLOO | Crossing head of glacier I look at old Inuit house |
| STEEP | One in flight crossing east, costing a lot |
| ISOBAR | I take flight crossing British meteorologist's line (6) |
| WINGSPAN | Tip to tip extent of a bird in flight (8) |
| LITTLEOWL | Sometimes spotted during the day running in pursuit of prey, a small, non-native tree-cavity-nesting species of bird in the Strigidae family (6,3) |
| FEMUR | Bone of bird in extremes of fear (5) |
| TITFORTAT | Retaliation of bird in place of junk (3,3,3) |
| ECHELON | Derived from the French for rung or ladder, a step-like body of aircraft, troops or ships also used to describe birds in flight or a peloton in crosswinds (7) |
| RISER | Early bird in flight? (5) |
| CORNER | Trap large bird in flight; inert, remove skin (6) |
| AWING | Inspiring wonder like a bird in flight (5) |
| KNOT | Bird in flight on knife-edge, rising (4) |
| ONTHEWING | Phrase describing bird in flight (2,3,4) |
| SWALLOWUP | Gulp down bird in flight (7,2) |
| LOGO | A bird in flight, for Lufthansa |
| SKEIN | Birds in flight seen from base in hide |
| SKEINS | Lots of (woolly?) birds in flight (6) |
