How do I solve 9 down in Daily Telegraph Cryptic 31245?

Question

Accepted Answer

9 down reads "Troubled brutes did wrong" (9 letters); the answer is DISTURBED. It's an anagram clue: the answer is a rearrangement of letters supplied by the clue itself. Look for an indicator like 'mixed', 'broken', 'cooked', or 'wild', and find a phrase whose letters add up to the answer's length. The full step-by-step breakdown is on this page.

Troubled brutes did wrong (9)

9D — Troubled brutes did wrong (9) — DISTURBED