Engendered (4)
'engendered' is the definition.
('breed' can be a synonym of 'engender')
This is all the clue.
(Other definitions for bred that I've seen before include "Engendered" , "Propagated, raised" , "Generated" , "(Well) brought up" , "Developed (animal variety)" .)
(Other definitions for begat that I've seen before include "Sired" , "Generated" , "Fathered (biblically)" , "Produced new life" .)
'engendered' is the definition.
(I've seen this in another clue)
This is all the clue.