Feature that sounds intellectual in the East End (7)
I believe the answer is:
eyebrow
'feature' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for eyebrow that I've seen before include "something going up doubtfully" , "Arc on the forehead" , "It may be raised" , "hairpiece" , "Arched line of facial hair" .)