Entrance in rebuilt woodyard unfinished (7)
I believe the answer is:
'entrance' is the definition.
(I know that doorway is a type of entrance)
'rebuilt woodyard unfinished' is the wordplay.
'rebuilt' indicates anagramming the letters.
'unfinished' means to remove the last letter.
'woodyard' with its last letter taken away is 'woodyar'.
'woodyar' is an anagram of 'DOORWAY'.
'in' is the link.
(Other definitions for doorway that I've seen before include "Entrance to a room" , "Opening" , "Room access, threshold" , "Threshold, portal" .)