Partial darkness (6)
(Other definitions for shade that I've seen before include "Slight colour difference" , "Colour; protection from sun" , "blind" , "Space sheltered from the sun" , "Nuance" .)
'partial darkness' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for gloom that I've seen before include "Dark depression?" , "Darkness; depression" , "Betting figures" , "Depression and melancholy" , "Cloudiness" .)
'partial darkness' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for shadow that I've seen before include "Follow; partial darkness" , "Partial or complete darkness" , "Area of darkness caused by obstructing light" , "Image cast - dog" , "opposing counterpart" .)