A flower grew (4)
I believe the answer is:
rose
I believe this clue is a double definition.
'a flower' is the first definition.
(I've seen this before)
'grew' is the second definition.
(I've seen this before)
(Other definitions for rose that I've seen before include "Flower - climbed" , "Flower - ascended" , "Garden flower" , "was being promoted" , "Went up; plant" .)