How do I solve 9 down in Express Cryptic 20260611?

Question

Accepted Answer

9 down reads "Loses energy like an old train" (4,3,2,5 letters); the answer is RUNS OUT OF STEAM. 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.

Loses energy like an old train (4,3,2,5)

9D — Loses energy like an old train (4,3,2,5) — RUNS OUT OF STEAM