How do I solve 3 down in Times Cryptic 29540?

Question

Accepted Answer

3 down reads "Suit hosting party concerned with vegetarian food" (9 letters); the answer is CALABRESE. 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.

Suit hosting party concerned with vegetarian food (9)

3D — Suit hosting party concerned with vegetarian food (9) — CALABRESE