Clue: Turn in healthy and sound when brought on board (6,2)
Answer: HAULED IN
Explanation: Definition: Turn 
Has to start with HA so am assuming HAULED IN or HAULED ON. Wordplay could indicate HAILED IN (homophone of HALE DIN), but I don't recognise that phrase. *Again, thanks to Muffyword for the parsing of HAULED IN. Definition is "brought on board" (as in fish hauled in in a net?)