Archetypal lab assistant (4)
I believe the answer is:
igor
'archetypal lab assistant' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for igor that I've seen before include "Russian man" , "Stravinsky, for example" , "Maybe 8 [SIKORSKY]" , "Prince of Russian opera" , "Prince in Borodin's opera" .)