How do I solve 3 down in Daily Telegraph Cryptic 31254?

Question

Accepted Answer

3 down reads "A pair of notes about copy" (5 letters); the answer is MIMIC. 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.

A pair of notes about copy (5)

3D — A pair of notes about copy (5) — MIMIC