Those disbelieving stats broadcast about Italy by ambassador (8)
I believe the answer is:
atheists
'those disbelieving' is the definition.
I can't judge whether this defines the answer.
'stats broadcast about italy by ambassador' is the wordplay.
'broadcast' indicates anagramming the letters (letters scattered or cast around).
'about' is an insertion indicator.
'italy' becomes 'i'.
'by' is a charade indicator (letters next to each other).
'ambassador' becomes 'HE' (His or Her Excellency).
'stats' anagrammed gives 'atsts'.
'i' put after 'he' is 'hei'.
'atsts' placed around 'hei' is 'ATHEISTS'.
Can you help me to learn more?
(Other definitions for atheists that I've seen before include "They believe there are no gods" , "They deny the existence of gods" , "Disbelievers in god" , "Non-believers" , "ungodly crew" .)