Woodwind Instrument With a Single-Reed Mouthpiece
Puzzle 5 of Radio Station Medium Pack
Question is: Woodwind Instrument With a Single-Reed Mouthpiece
and the answer is: CLARINET
Word Meaning:
CLARINET — (music) A woodwind musical instrument that has a distinctive liquid tone whose characteristics vary among its three registers: chalumeau (low), clarion (medium), and altissimo (high).
Definitions from Wiktionary.