Close family safeguarding son's fur coat (8)
I believe the answer is:
sealskin
'fur coat' is the definition.
'close family safeguarding son's' is the wordplay.
I cannot quite understand how this works, but
'close' could be 'seal' (sealing is a kind of closing) and 'seal' is found within the answer.
'family' could be 'kin' (synonyms) and 'kin' is found in the answer.
'son's' could be 's' and 's' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for sealskin that I've seen before include "prepared fur" , "Fur from the sea" , "Fur - lean kiss (anag)" , "Marine fur" , "Hide" .)