Take action with nurse to get result (5)
I believe the answer is:
ensue
'result' is the definition.
(to ensue is to occur or result)
'take action with nurse' is the wordplay.
'take action' becomes 'sue' (as in suing somebody in court).
'with' is a charade indicator (letters next to each other).
'nurse' becomes 'EN' (abbreviation for enrolled nurse).
'sue' after 'en' is 'ENSUE'.
'to get' acts as a link.
(Other definitions for ensue that I've seen before include "Follow subsequently" , "succeed" , "Befall" , "Happen or come about as consequence" , "Arise" .)