Bill Bundy educated little, lacking colour (6)
I believe the answer is:
undyed
'little lacking colour' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'bill bundy educated' is the wordplay.
'UNDYED' is hidden in amongst the letters.
However, I'm unsure how this is indicated.
Can you help me to learn more?
(Other definitions for undyed that I've seen before include "Not coloured" , "Without artificial colouring" .)