Evening star located (6)
I believe the answer is:
sunset
'evening' is the definition.
(thesaurus)
'star located' is the wordplay.
'star' becomes 'sun' (the Sun is a star).
'located' becomes 'set' (synonyms).
'sun'+'set'='SUNSET'
(Other definitions for sunset that I've seen before include "Time of evening colour" , "US nest (anag.)" , "star not in the ascendant at this time" , "brilliant decline?" , "When daylight fades" .)