Colour of Inspector-General in co-operative effort (5)
I believe the answer is:
beige
'colour' is the definition.
(beige is a kind of colour)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for beige that I've seen before include "Pale brown" , "Fawn or buff" , "Light brown" , "Yellowish-brown" , "Shade of brown" .)