Provider of fall color (5)
I believe the answer is:
aster
'provider of fall color' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for aster that I've seen before include "Kind of daisy" , "Christmas daisy" , "It grows" , "Plant like a Michaelmas daisy" , "Stare oddly at the flower" .)