She rebuilt part of Seven Dials (4)
I believe the answer is:
enid
'she' is the definition.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for enid that I've seen before include "Dine out on this girl's name also" , "Geraint's wife's" , "- Blyton, twentith century writer" , "Writer of children's books, d. 1968" , "Dine with Ms blyton, writer" .)