Fire new growth (5)
I believe the answer is:
shoot
I believe this is a double definition.
'fire' is the first definition.
(I know that fire is a more specific form of shoot)
'new growth' is the second definition.
(a shoot is new growth from a plant)
(Other definitions for shoot that I've seen before include "Make a film" , "New growth; last word of Hamlet" , "Film; move rapidly" , "Pump full of lead" , "Fire (a gun)" .)