One draped in black, reflective, her tears legendary (5)
I believe the answer is:
niobe
'her tears legendary' is the definition.
I can't tell whether this definition defines the answer.
'one draped in black reflective' is the wordplay.
'one draped' becomes 'i' (I can't justify this - if you can you should give a lot more credence to this answer).
'in' is an insertion indicator.
'black' becomes 'ebon' (similar in meaning).
'reflective' says the letters should be written in reverse.
'i' going into 'ebon' is 'eboin'.
'eboin' written backwards gives 'NIOBE'.
Can you help me to learn more?
(Other definitions for niobe that I've seen before include "Weeping woman" , "Daughter of Tantalus, turned to rock" , "She cried" , "proud mum" , "In Greek myth, turned into stone as she wept" .)