How do I solve 9 down in Times Cryptic 29542?

Question

Accepted Answer

9 down reads "Constriction sets in so badly" (8 letters); the answer is STENOSIS. 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.

Constriction sets in so badly (8)

9D — Constriction sets in so badly (8) — STENOSIS