Orange-yellow (5)
I believe the answer is:
ochre
I believe this clue is a double definition.
'orange' is the first definition.
(I know that ochre is a type of saffron)
'yellow' is the second definition.
(I know that ochre is a type of Saffron (color))
(Other definitions for ochre that I've seen before include "Yellow/brown/red pigment" , "Orange" , "natural colouring" , "Chore (anag) - pale brownish-yellow" , "Pigment made from clay and iron oxide" .)