How do I solve 4 down in Times Cryptic 29550?

Question

Accepted Answer

4 down reads "Hybrid shoe" (4 letters); the answer is MULE. It's a double-definition clue: two separate definitions of the same word sit side by side. No wordplay split and no indicators — both halves of the clue define the answer. The full step-by-step breakdown is on this page.

Hybrid shoe (4)

4D — Hybrid shoe (4) — MULE