Purple hue (5)
I believe the answer is:
lilac
'purple hue' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lilac that I've seen before include "Pale mauve colour for a flower" , "I call (anag)" , "Lavender colour" , "Spiritual knowledge" , "Pale pinkish-violet" .)