Hotel specialist returned to run leaderless institution (9)
I believe the answer is:
orphanage
'institution' is the definition.
(I know that orphanage is a type of institution)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for orphanage that I've seen before include "with deprived children" , "left children here?" , "home for little Annie" , "Institution for parentless or abandoned children" , "Children's home" .)