Definition: "Rock purveyor"

This is a container clue - one word or phrase is placed inside (contained within) another word or phrase to form the answer.

Look for 'about' as the container indicator. Find a word meaning 'we will' and place it inside a word meaning 'make rude noises'. The container word wraps around the contained word.

Answer: JEWELLER | 'About' indicates containment - WE'LL (we will) goes inside JEER (make rude noises) to give JE(WE'LL)ER = JEWELLER