Fault is admitted by outsiders in team for bombings etc (9)
I believe the answer is:
terrorism
'bombings etc' is the definition.
I can't tell whether this defines the answer.
'fault is admitted by outsiders in team' is the wordplay.
'fault' becomes 'error' (synonyms).
'admitted by' indicates putting letters inside.
'outsiders in' means to remove the middle letters.
'team' with its centre removed is 'tm'.
'error'+'is'='erroris'
'erroris' put within 'tm' is 'TERRORISM'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for terrorism that I've seen before include "Unauthorised violence for political ends" , "Action of revolutionaries" .)