| Coastal phenomenon |
| Canyon phenomenon |
| Acoustic guitar" or "push lawn mower," e.g. |
| Pre-migraine headache phenomenon |
| Agricultural phenomenon sometimes linked to UFOs |
| Acoustic device |
| Autumn lunar phenomenon |
| Acoustic pair |
| Alpine phenomenon |
| Phenomenon observed in receding galaxies ... and in the answers to this puzzle's asterisked clues? |
| Acoustic instruments |
| Deadens acoustically |
| First light ... or a phenomenon suggested by this puzzle's seven sets of circled letters? |
| Acoustical foam pattern |
| Pop culture phenomenon |
| Stock market phenomenon |
| Acoustic accessory |
| Eerie phenomenon |
| Acoustically, it affects treble but not bass |
| Acoustical engineer's concern |
| Deaden acoustically |
| Phenomenon of the Colorado River. |
| Depression phenomenon |
| Eclipse phenomenon. |
| Acoustic phenomenon |
| Polar region phenomenon |
| Excavator overlooked secondary weather phenomenon |
| Unexplained phenomenon |
| Orbiting phenomenon |
| Static phenomenon |