Leia's brother (4)
I believe the answer is:
luke
'leia's brother' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for luke that I've seen before include "One of the Gospels" , "One of the four Evangelists" , "Biblical evangelist" , "Patron saint of physicians" , "Matthew, Mark, - - and John" .)