The most common and most likely answer to this crossword clue is the 7 letter word ELECTRA
I've seen this crossword clue in The Daily Telegraph
E
L
E
C
T
R
A
More clues leading to the result ELECTRA
- Choose artist – complex woman
- Old German prince dropping round with a complex woman?
- Greek girl drops ecstasy in claret when sloshed
- In real trouble, shock treatment for sort of complex
- Elite artist is complex woman?
- Complex woman takes ecstasy with sparkling claret
- Some start celebrating upcoming Greek play
- Complex woman drops ecstasy into claret when sloshed
- Star in waiting, the sun
- 20 lady‘s plump for a queen giving a twirl
Buddy explains!

The straight part
We know that "Fabulous woman" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fabulous woman = electra.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.