How do I solve 28 across in Daily Telegraph Cryptic 31241?

Question

Accepted Answer

28 across reads "One pair in front seeing what's said" (3-7 letters); the answer is LIP-READING. 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.

One pair in front seeing what's said (3-7)

28A — One pair in front seeing what's said (3-7) — LIP-READING