The people I survey in Ohio getting shocked (3,6)
'the people' is the definition.
(Greek term for the common people)
'i survey in ohio getting shocked' is the wordplay.
'survey' becomes 'poll' (polling is a kind of surveying).
'in' means one lot of letters goes inside another.
'getting shocked' indicates an anagram.
'ohio' is an anagram of 'hooi'.
'ipoll' placed inside 'hooi' is 'HOI POLLOI'.
(Other definitions for hoi polloi that I've seen before include "The unwashed masses!", "The plain people in Greece", "Proletariat", "ordinary people", "The common people - in Greece".)