Follow guarantee to remove Republican (5)
I believe the answer is:
ensue
'follow' is the definition.
(ensue can mean to follow or happen as a result)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for ensue that I've seen before include "Befall" , "Occur as a result (of)" , "Turn out" , "Happen as consequence or afterward" , "Follow later" .)