Faitaccompli

3 clues
Done deal (French)
Argument forestaller
Something already done (French)
Similar answers:
Accompli
Accomplice
Accomplis
Accomplish
Accomplished
Accomplishments
Admissionaccomplished
Allaccomplished
Backhandedcompliments
Compliance
Compliancy
Compliant
Compliantdepartment
Compliantform
Complicate
Complications
Complicity
Complied
Complies
Compliment