Wins out, embracing the French relations (2-4)
I believe the answer is:
in-laws
'relations' is the definition.
(I know this)
'wins out embracing the french' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'embracing' indicates putting letters inside.
'the french' becomes 'la' ('the' in French).
'wins' is an anagram of 'inws'.
'inws' placed around 'la' is 'IN-LAWS'.
(Other definitions for in-laws that I've seen before include "Christmas is when you might bid them welcome" , "Relatives by marriage 2-4)" , "Spouse's relations" , "Family of your spouse" , "A person's relatives by marriage" .)