Pie lacking in colour (5)
I believe the answer is:
pasty
I believe this is a double definition.
'pie' is the first definition.
(I know that pasty is a type of meat pie)
'lacking in colour' is the second definition.
(pasty can mean pale-looking)
(Other definitions for pasty that I've seen before include "Meat-filled pastry dish" , "Pallid" , "Cornish dish" , "Pale" , "Far from healthy-looking" .)