Just like that, a crimson rose (6)
I believe the answer is:
Here is my best explanation:
'rose' is the definition.
(soaring is a kind of rising)
'just like that a crimson' is the wordplay.
'just like that' becomes 'so'.
'crimson' becomes 'red' ('red' can be a synonym of 'crimson').
(Other definitions for soared that I've seen before include "Rose high into the air", "Flew upwards or high in the sky" and "Rose high in flight like bird".)