Orange-yellow colour (5)
'orange-yellow colour' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for saffron that I've seen before include "Flavouring derived from a species of crocus" , "Fans for, say orange food flavour and colouring" , "Flavouring from a kind of crocus" , "Culinary spice" , "additive found in rice" .)
I believe this clue is a double definition.
'orange' is the first definition.
(I've seen this before)
'yellow colour' is the second definition.
(I know that ochre is a type of saffron)
(Other definitions for ochre that I've seen before include "Earthy colour" , "An orangey pigment" , "Yellow/brown/red pigment" , "Gold coins, perhaps" , "Pale brownish-yellow colour or pigment" .)