Twilit (5)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
dusky
'twilit' is the definition.
(synonyms)
This is all the clue.
(Other definitions for dusky that I've seen before include "Shadowy, darkish" , "Dark shaded" , "Dark-complexioned" , "Swarthy" , "Shadowy or dark-coloured" .)