Furnishings, etc., in a wide corridor (5)
I believe the answer is:
decor
'furnishings' is the definition.
(decoration of a room)
'in a wide corridor' is the wordplay.
'in' says the answer is hidden in the clue.
'DECOR' is hidden in the letters of 'wide corridor'.
'etc' acts as a link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for decor that I've seen before include "Scheme of interior furnishings" , "stage background" , "Embellishment of a room" , "Room colour scheme, furnishings, etc" , "Interior layout and furnishings" .)