Old Testament book that tells of a beautiful Jewess (6)
I believe the answer is:
esther
'old testament book that tells of a beautiful jewess' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for esther that I've seen before include "Now there's a lady" , "Biblical heroine, who married the king of Persia" , "Holy Book" , "OT heroine" , "10 Heroine" .)