What does the cryptic crossword clue "Somewhat grotesque, alarming scream (6)" mean?

The definition is "scream". The wordplay uses a hidden word. Hidden in "somewhat groteSQUE, ALarming scream" The answer is SQUEAL.

Somewhat grotesque, alarming scream (6)

Guardian Cryptic #29633 | 22 Down | 2025-03-04 flower