Intellectuals (8)
I believe the answer is:
eggheads
'intellectuals' is the definition.
(I know this)
This is all the clue.
(Other definitions for eggheads that I've seen before include "Intellectuals with oval brains?" , "Boffins" , "Slang intellectuals with lofty domes" , "TV quiz show" , "academic talents" .)