Outbreaks of movie star Moore appearing in films like Exodus (9)
I believe the answer is:
epidemics
'outbreaks' is the definition.
(epidemic is a kind of outbreak)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for epidemics that I've seen before include "Widespread outbreaks of an infectious diseases" , "outbreaks of disease" .)