What does the cryptic crossword clue "Italian monster namely reverse of friend (6)" mean?

The wordplay uses a reversal. SC (synonym="scilicet, a Latin word meaning ‘namely’") + ALLY (reversal="friend") = SCYLLA The answer is SCYLLA.

Italian monster namely reverse of friend (6)

Independent Cryptic #11714 | 25 Across | 2024-04-26 flower