Room in Clue (4)
I believe the answer is:
hall
'room in clue' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hall that I've seen before include "Large house (linked to Dotheboys, Wildfell and Toad)" , "Foyer" , "See 1" , "See 21" , "Large public building" .)