Emerged from a flower (5)
I believe the answer is:
arose
'emerged from' is the definition.
(I've seen this before)
'a flower' is the wordplay.
'flower' becomes 'rose' (I've seen this before**).
'a'+'rose'='AROSE'
(Other definitions for arose that I've seen before include "Cropped up" , "Emerged from" , "Sprang up" , "Occurred; stood up" , "appeared" .)