Loses brilliance (5)
I believe the answer is:
fades
(Other definitions for fades that I've seen before include "Loses colour, through age or sunlight" , "Gets weaker" , "Loses colour or freshness" , "Gets less" .)
I believe the answer is:
fades
(Other definitions for fades that I've seen before include "Loses colour, through age or sunlight" , "Gets weaker" , "Loses colour or freshness" , "Gets less" .)