Wife of a ship's officer who's remarried? (6,4)
I believe the answer is:
second mate
'wife of a ship's officer' is the definition.
'second mate' can be an answer for 'officer' (I have seen 'Naval officer' mean 'second mate' so perhaps 'officer' could also mean 'second mate'). I am not certain of the 'wife of a ship's' bit.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for second mate that I've seen before include "Craftsman, perhaps" , "Naval officer" , "one involved in bigamy?" .)