Ran odd broadcast about 'I, Robot' (7)
I believe the answer is:
android
'robot' is the definition.
(android is a kind of robot)
'ran odd broadcast about i' is the wordplay.
'broadcast' indicates anagramming the letters.
'about' indicates putting letters inside.
'ran'+'odd'='ranodd'
'ranodd' with letters rearranged gives 'androd'.
'androd' enclosing 'i' is 'ANDROID'.
(Other definitions for android that I've seen before include "Being not exactly human" , "Humanoid robot" , "Half man, half machine" , "Mechanical man" , "Human-type robot" .)