| ASIDE | Actor's remark, supposedly inaudible to others (5) |
| DOGWHISTLE | High-frequency "pipe" used in training canines and supposedly inaudible to humans (3,7) |
| CASTASIDE | Actors with words supposedly inaudible on stage may be discarded |
| ULTRASONIC | Inaudible to humans |
| BATS | Flitter-mice that echolocate by means of supersonic squeals virtually inaudible to humans (4) |
| DROWN | --- out, to render a sound inaudible by making a loud noise (5) |
| DUBAI | Inaudible eccentric is out of line in this Emirate (5) |
| MUTED | Inaudible on zoom. (5) |
| QUIET | Inaudible |
| FAINT | Inaudible |
| ASIDES | Actors' remarks to the audience |
| FAINTPRAISE | "The voice is good but almost inaudible"? (5,6) |
| DROWNSOUT | Makes inaudible doctor admit wrong to us (6,3) |
| HEARTHEENDOFIT | Last part of speech is always inaudible, they keep reminding us! (2,5,4,3,3,2,2) |
| WENEVER | Last part of speech is always inaudible, they keep reminding us! (2,5,4,3,3,2,2) |
| SECRET | An official level of classification for information; an inaudible prayer at Mass; a piece of armour hidden by clothes; or, something known only to its initiates, such as a password (6) |
| SILENT | Listen another way, as it's inaudible (6) |
| UTTERING | Giving speech, don't start being inaudible (8) |
| MURMUR | A softly spoken, almost inaudible utterance (6) |
| TOOLOW | Inaudible, as TV volume |
