Final phase? (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">final phase?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sunset that I've seen before include "End of the day, getting dark" , "Evening glow" , "Final declining phase (of something)" , "'The dying of the 18'" , "Nightfall" .)
(Other definitions for twilight that I've seen before include "Evening glow" , "Period of gradual decline or obscurity" , "Illumination at dusk" , "Period just after sunset, becoming dark" , "Glow after sunset" .)