Woman in evening dress that's figure-revealing (4)
I believe the answer is:
nine
'figure-revealing' is the definition.
I can't judge whether this definition defines the answer.
'woman in evening dress' is the wordplay.
'NINE' is hidden in amongst the letters.
However, I am unsure how the hidden word is indicated.
'that's' is the link.
Can you help me to learn more?
(Other definitions for nine that I've seen before include "Number of the ancient Muses" , "Square next up after four" , "and 23: Flash in the pan" , "3x3" , "Cat's lives? - the next clue?" .)