| ZITHER | Plucked musical instrument with a sounding board (6) |
| DULCIMER | Musical instrument like a flat box, with a sounding box (8) |
| BANJO | Plucked musical instrument with a round tambourine-like head (5) |
| HARP | Plucked musical instrument with individual strings running at an angle to its soundboard (4) |
| PIANO | It provides a sounding board |
| PLANCK | He devised a constant sounding board (6) |
| TIMBRE | Musical quality of sounding board? (6) |
| KEYTAR | Hybrid musical instrument with a shoulder strap |
| ZITHERS | Plucked musical instruments with strings the same length as the soundboard (7) |
| PRINKS | Word imitative of Alka-Seltzer tablets dropping into water, bullets striking metal, piano/xylophone notes or plucked musical strings (6) |
| BALALAIKA | A plucked musical instrument, usually having a triangular body (9) |
| BANDORE | 16c plucked musical instrument resembling a lute with seven pairs of metal strings (7) |
| BANDORA | 16th-century plucked musical instrument resembling a lute (7) |
| CELLO | Short or abbreviated name of a stringed, plucked musical instrument played by Julian Lloyd Webber (5) |
| ABATVOIX | A television in a cabinet also containing one sounding board |
| FRENCHHORN | A brass musical instrument with a coiled tube, valves and a wide bell (6,4) |
| CAST | From the Old Norse meaning "to throw", a toss of something such as dice, a fishing-line or a sounding lead; or, said distance thrown (4) |
| PLUMB | From "lead", a bob on a string to determine verticality; or, a sounding lead to measure the depth of water (5) |
| CONFIDANT | Don, in fact, becomes a trusted sounding board (9) |
| SITAR | A stringed musical instrument with a long neck and a rounded body (5) |
