Flax-colored (6)
I believe the answer is:
golden
'flax-colored' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for golden that I've seen before include "Most favourable; bright" , "With sixteen across Apple variety" , "Excellent" , "Colour of the fleece sought by Jason" , "Type of apple" .)