Answer: attesting

AnswerCrossword Clue
ATTESTINGCertifying
ATTESTINGConfirming.
ATTESTING... for a teacher?
ATTESTINGWitness's task
attestingDeclare that something exists or is the case
attestingATTEST, to affirm to be genuine
attestingProvide or serve as clear evidence of
attestingBe a witness to; certify formally