Answer: ownsup

AnswerCrossword Clue
OWNSUPConfesses
OWNSUPAdmits, with "to"
OWNSUPComes clean
OWNSUPAdmits
OWNSUPConfesses (to)
OWNSUPSays "My bad!"
OWNSUPAdmits (with "to")