Faded, we hear, yet not without colour (4)
I believe the answer is:
dyed
'colour' is the definition.
(I have seen 'Changed colour ' mean 'dyed' so perhaps 'colour' could also mean 'dyed')
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for dyed that I've seen before include "A shade unnatural" , "Re-coloured" , "Artificially coloured" , "Changed the colour of fabric" , "(Of fabric) coloured" .)