How do I solve 23 across in Express Cryptic 20260529?

Question

Accepted Answer

23 across reads "Security device to dismiss panic" (4,5 letters); the answer is FIRE ALARM. It's a charade: the answer breaks into parts in clue order, each part clued by a word or short phrase. No indicators needed; watch for standard abbreviations (RA = artist, US = American, IN = at home) and short synonyms. The full step-by-step breakdown is on this page.

Security device to dismiss panic (4,5)

23A — Security device to dismiss panic (4,5) — FIRE ALARM