Related Clues:
- Slopes upward
- Reaches a new level
- Does half of a mountaineering expedition
- Heads skyward
- Flies high like an eagle
- Gets higher, as a river
- Heeds the bailiff
- Dough does it
- Responds to the alarm
- Approaches clouds
- Emulates a hawk
- Climbs, as the temperature
- Is on the up and up?
- Behaves like a souffle
- Heads high