| Answer | Crossword Clue |
|---|---|
| LEG | Flight segment |
| STAIR | Flight segment |
| RISER | Flight segment |
| STEP | Flight segment |
| RISER | Flight segment? |
| STAIR | Segment of a flight |
| tertials | pertaining to any of a set of flight feathers situated on the basal segment of a bird's wing |
| tertial | pertaining to any of a set of flight feathers situated on the basal segment of a bird's wing |
| balancer | one of a pair of slender, club-shaped appendages on the hindmost body segment of a fly, serving to maintain its balance in flight |
