Backfire managed to be suppressed by thunder for example (9)
I believe the answer is:
boomerang
'backfire' is the definition.
(synonyms)
'managed to be suppressed by thunder for example' is the wordplay.
'managed' becomes 'ran' (both can mean organised or was in charge of).
'to be suppressed by' means one lot of letters goes inside another (I've seen this in other clues).
'thunder' becomes 'boom' (synonyms).
'for example' becomes 'e.g.' (short for 'exempli gratia', 'for example' in Latin).
'boom'+'eg'='boomeg'
'ran' put inside 'boomeg' is 'BOOMERANG'.
(Other definitions for boomerang that I've seen before include "Aboriginal projectile" , "Aboriginal throwing stick" , "Recoil from" , ""It keeps coming back"" , "Aboriginal weapon" .)