Freakaccident

2 clues
One-in-a-million mishap
Circus performer: "I had a ___
Similar answers:
Accident
Accidental
Accidentalbreak
Accidentally
Accidentlog
Accidentphone
Accidentprone
Accidentreports
Accidents
Accidentsarewaiting
Accidentshappen
Anaccidentalman
Byaccident
Freakaccident
Freakazoid
Happyaccident
Happyaccidents
Itwasanaccident
Occident
Occidental