Colour of lamp cover (5)
I believe the answer is:
shade
This clue is a double definition.
'colour' is the first definition.
(I know that colour can be written as shade)
'lamp cover' is the second definition.
(I've seen this in another clue)
'of' is the link.
(Other definitions for shade that I've seen before include "Slight colour difference" , "Relative darkness" , "Hue" , "Area sheltered from the sun" , "Tint; ghost" .)