| ASIA | The largest continent; English progressive rock band (4) |
| BIRD | see 5dn, English progressive rock band, founded in 1969, best known for the song Sympathy |
| RARE | and 50dn, English progressive rock band, founded in 1969, best known for the song Sympathy |
| THEN | and 17ac, English progressive rock band whose keyboard player was Keith Emerson who went on to form Emerson, Lake & Palmer |
| NICE | see 16ac, English progressive rock band whose keyboard player was Keith Emerson who went on to form Emerson, Lake & Palmer |
| RAREBIRD | English progressive rock band, founded in 1969, best known for the song Sympathy that sold one million copies worldwide |
| ANDREWLATIMER | Guitarist and founder member of the English progressive rock band Camel, formed in 1971 |
| THEWALL | Eleventh studio album by English progressive rock band Pink Floyd released in 1979 (3,4) |
| YES | English progressive rock band formed in 1968 (3) |
| ATOMICROOSTER | English progressive rock band whose drummer was Carl Palmer who went on to form Emerson, Lake & Palmer |
| THE | and 17ac, English progressive rock band whose keyboard player was Keith Emerson who went on to form Emerson, Lake & Palmer |
| FISH | Stage name of Scottish lead singer of the neo-progressive rock band Marillion until 1988 (4) |
| TULL | Jethro ___ (progressive rock band) |
| WAKEMAN | Rick, English progressive rock keyboardist who released the album The Red Planet in 2020 (7) |
| APAC | Region encompassing part of the largest continent plus Oceania (abbr.) |
| EMERSON | English progressive rock keyboard player, Keith (7) |
| STRAWBS | The _, progressive rock band noted for the song Part of the Union released in 1973 (7) |
| PETERHAMMILL | English singer-songwriter who was a founding member of the progressive rock band Van der Graaf Generator |
| SHOAL | The sardine run is known as The Greatest ... on Earth after a 1970s progressive rock band who made only two albums. (5) |
| GABRIEL | Who was the original lead singer of the progressive rock band Genesis? (7) |
