What does the cryptic crossword clue "Addiction treatment cuts out a clock’s sound it’s said (5)" mean?

The wordplay uses a homophone (sounds like). Sounds like (it’s said) ‘de-tocks’ (cuts out a clock’s sound) The answer is DETOX.

Addiction treatment cuts out a clock’s sound it’s said (5)

Guardian Cryptic #29437 | 27 Across | 2024-07-17 flower