Colour of coach-horses seen every so often (5)

I believe the answer is:

ochre

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'colour' is the definition.
(I know that ochre is a colour)

I don't understand how the remainder of the clue works.

(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" .)

I've seen this clue in The Telegraph.

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