Colour conflict at the palace? (5,4)
I believe the answer is:
royal blue
'colour' is the definition.
(I know that royal blue is or was a colour)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for royal blue that I've seen before include "Bally euro (anag.)" , "Deep rich shade of colour" , "A shade Conservative" , "(Regal?) colour" , "Your be-all (anag) - shade" .)