Related Clues:
- "Big mouth" creature
- Low pitch pro
- Art form involved with origins of the underworld and source of rainbows?
- Rainbow fish?
- Resistance interrupting attempt to sell fish
- Instrument played upright
- Opens 3 down for member of barbershop quartet
- Grumpy guy, rogue ticket seller, coming across resistance
- With 21-Across, marching band instrument
- Many an opera villain
- Male singer with a deep voice
- Hawk brazenly catching river fish
- Fish (associated with a Schubert quintet?)
- Fish and chips ultimately devoured by graduates
- Name of an instrument or a fish