Like some windows (6)
'like some windows' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tinted that I've seen before include "Slightly coloured as hair may be" , "Faintly coloured" , "Lightly coloured" , "Coloured slightly, spectacles or windscreens" , "'Coloured, shaded (6)'" .)
(Other definitions for curtained that I've seen before include "concealed" , "Out of public view" .)