Laurel say remaining fresh and vital (9)
I believe the answer is:
evergreen
This clue is a triple definition!
'laurel' is the first definition.
(I've seen this before)
'say' acts as a link.
'remaining' is the second definition.
(thesaurus)
'fresh and vital' is the third definition.
(I've seen this before)
(Other definitions for evergreen that I've seen before include "The foliage that doesn't change colour" , "Leaves of holly and ivy are --" , "song that's been popular for a long time" , "Standard - type of shrub" , "always retaining popularity" .)