One woman's husband falling for another (6)
I believe the answer is:
esther
'one woman's' is the definition.
(woman's name)
'husband falling for another' is the wordplay.
I cannot really see how this works, but
'husband' could be 'h' (abbreviation) and 'h' is present in the answer.
'another' could be 'r' (I've seen this in other clues) and 'r' is present in the answer.
The remaining letters 'este' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for esther that I've seen before include "Holy Book" , "Now there's a lady" , "10 Heroine" , "Set her with this girl" , "There's a biblical girl" .)