How do I solve 13 across in Daily Telegraph Cryptic 31259?

Question

Accepted Answer

13 across reads "Go with a b-business?" (9 letters); the answer is ACCOMPANY. It's a homophone clue: the answer sounds like another word. Indicators like 'reportedly', 'we hear', or 'sounds like' point to a word that's pronounced similarly to the answer. The full step-by-step breakdown is on this page.

Go with a b-business? (9)

13A — Go with a b-business? (9) — ACCOMPANY