Twilight (4)
'twilight' is the definition.
(I know that twilight can be written as dusk)
This is the entire clue.
(Other definitions for dusk that I've seen before include "Time towards the end of the day" , "Period after sunset" , "Time of day after sunset" , "Gloaming" , "Sundown" .)
'twilight' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for sunset that I've seen before include "daily event" , "Twilight time" , "When daylight fades" , "'The dying of the 18'" , "When the light begins to fall below the horizon" .)