Orange-yellow (5)
I believe the answer is:
ochre
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">orange</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that ochre is a type of saffron)</span><br/ ><br/ >'<span class="explanation-format__original">yellow</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that ochre is a type of Saffron (color))</span><br/ ><br/ ></span>
(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" .)