| ASSONANCE | Resemblance of sound (in nearby words) |
| ASSONANT | Having resemblance of sound |
| COMPARING | Looking for resemblance of equality in advent (9) |
| LIKEN | Point out resemblance of English in different link (5) |
| PANSY | From the French word for "thought", a violet-like flower so named because of its resemblance of a human face (5) |
| SIMILE | Resemblance of one thing to another of a different kind (6) |
| SPLATS | Central wooden supports of chair backs; or, a slang word for asterisks, thought to be due to their apparent resemblance of squashed bugs (6) |
| ANALOGY | In biology, resemblance of form or function between body parts or organs that have evolved independently (7) |
| MIMICRY | The act/skill of apery or burlesque; or, the resemblance of an organism, such as a stick insect, to another animal/object, such as a twig (7) |
| SIMILITUDE | Resemblance of side having new limit used first |
| SONIC | (of speed) Having or caused by speed approximately equal to that of sound in air at sea level. |
| CHEVALIER | No end of sound in shout of encouragement for old knight |
| YEAGER | Surname of the first pilot to exceed the speed of sound in level flight (6) |
| SYLLABLES | Units of sound in a language that make up words (9) |
| SONICBOOM | Sound produced by an object travelling faster than the speed of sound; in dry air, approximately 760 mph (5,4) |
| GLENNIS | Glamorous ____, nickname of Chuck Yeager's plane which broke the speed of sound in 1947 (7) |
| AMBIENTNOISE | General level of sound in an area (7,5) |
| PHONEMES | Distinct units of sound in language |
| COPSE | Manage to conceal source of sound in some trees |
| MACHINIST | Factory worker achieving speed of sound in back street (9) |
