How do I solve 21 across in Times Cryptic 29537?

Question

Accepted Answer

21 across reads "Shape of mug that H&M cut apart" (5 letters); the answer is RHOMB. 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.

Shape of mug that H&M cut apart (5)

21A — Shape of mug that H&M cut apart (5) — RHOMB