People scattered seeing snake interrupt radio broadcast (8)
I believe the answer is:
diaspora
'people scattered' is the definition.
(I've seen this before)
'snake interrupt radio broadcast' is the wordplay.
'snake' becomes 'asp' (asp is a kind of snake).
'interrupt' is an insertion indicator.
'broadcast' indicates an anagram (letters scattered or cast around).
'radio' with letters rearranged gives 'diora'.
'asp' inserted within 'diora' is 'DIASPORA'.
'seeing' acts as a link.
(Other definitions for diaspora that I've seen before include "Scattering in exile" , "Dispersion of a people from their homeland" , "Great dispersion of people, Jews or Irish" , "race round the world" , "Scattered group" .)