Bring about, cause (8)
I believe the answer is:
engender
I believe this is a double definition.
'bring about' is the first definition.
(I've seen this in another clue)
'cause' is the second definition.
(I know that engender is a kind of cause)
(Other definitions for engender that I've seen before include "Produce or cause, emotions say" , "Give rise to (something)" , "Precipitate" , "Give rise to; beget" , "Ned Green could breed" .)