Be brought up in parts of Plaistow with the common people (5)
I believe the answer is:
plebs
'common people' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for plebs that I've seen before include "Common people" , "The masses!" , "Lower classes (derog.)" .)