Fall bloom (5)
I believe the answer is:
aster
'fall bloom' 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 "Tears (anag) - plant" , "Showy garden flower" , "Michaelmas daisy genus" , "Stare oddly at the flower" , "Large daisy" .)