treat with bleach (6)
I believe the answer is:
whiten
(Other definitions for whiten that I've seen before include "Blanch" , "Become less colourful" , "New hit (anag.)" , "Bleach" , "Turn pale" .)
I believe the answer is:
whiten
(Other definitions for whiten that I've seen before include "Blanch" , "Become less colourful" , "New hit (anag.)" , "Bleach" , "Turn pale" .)