Performer making some impact originally (5)
I believe the answer is:
actor
'performer' is the definition.
(actor is a kind of performer)
'some impact originally' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'ACTOR' can be found hidden inside 'impact originally'.
'making' is the link.
(Other definitions for actor that I've seen before include "Player - performer" , "One in a play" , "Dramatic artist" , "Film star" , "eg Anthony Hopkins" .)