What does the cryptic crossword clue "Hail of projectiles from colossal volcano (5)" mean?

The definition is "Hail of projectiles". The wordplay uses a hidden word. Hidden in "hail of projectiles from colosSAL VOlcano" The answer is SALVO.

Hail of projectiles from colossal volcano (5)

Independent Cryptic #1787 | 13 Across | 2024-05-26 flower