Colour of coach-horses seen every so often (5)
I believe the answer is:
ochre
'colour' is the definition.
(I know that ochre is a colour)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for ochre that I've seen before include "Yellowish-brown or red pigment" , "Yellow/brown pigment" , "An orangey pigment" , "Earthy pigment - light brownish-yellow" , "Earthy colour" .)