Told he can broadcast series of events (9)
I believe the answer is:
Here is my best explanation:
'series of events' is the definition.
(I've seen this before)
'told he can broadcast' is the wordplay.
'broadcast' indicates an anagram.
'toldhecan' anagrammed gives 'DECATHLON'.
(Other definitions for decathlon that I've seen before include "Athletic event", "Athletic contest with ten different events", "Latched on to athletic competition of 10 events", "Series of events", "sporting event", "Event, or events", "Competition comprising ten events", "Athletics contest", "Athletics event" and "series of events".)