Answer: aper

AnswerCrossword Clue
APEROne executing a takeoff?
APERCopier
APERFrank Gorshin, for one
APEROne making faces, maybe
APEROne taking off
APEROne making a good impression?
APEROne doing monkey business?
APERDana Carvey, at times
APERMime
APEROne who's often not himself?
APERImpersonator
APERParrot
APERMe-tooer
APEROne good at takeoffs
APER"Monkey see, monkey do" practitioner
APERMimicking one
APEROne who lacks originality
APERTakeoff artist
APERImitative sort
APERRich Little, while doing his act
aperto copy closely but often clumsily and ineptly
APERParrot, at times
APERMimic
APERCopycat
APERImitator
APERLittle, for one
APERRich Little, e.g.
APERInpersonator
APERImpressionist
APERLittle or Short
APERParodist
APERCopy-cat
APERSimon Says player
APEROne seeing and doing
APERMimic in action
APERMimicry specialist
APEROne doing imitations
APERUnoriginal one
APERSeer-and-doer
APERMimic at work