How do I solve 4 down in Daily Telegraph Cryptic 31236?

Question

Accepted Answer

4 down reads "Rescue avian lost at sea" (9 letters); the answer is SALVATION. 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.

Rescue avian lost at sea (9)

4D — Rescue avian lost at sea (9) — SALVATION