Go red in the face (6)
I believe the answer is:
colour
(Other definitions for colour that I've seen before include "Hue, shade" , "Blue or green, say" , "Quality that results from light reflection" , "Affect" , "Complexion - pretext" .)
I believe the answer is:
colour
(Other definitions for colour that I've seen before include "Hue, shade" , "Blue or green, say" , "Quality that results from light reflection" , "Affect" , "Complexion - pretext" .)