Ordinary people come first in new Ohio poll (3,6)
I believe the answer is:
hoi polloi
'ordinary people' is the definition.
(I've seen this before)
'come first in new ohio poll' is the wordplay.
'come' becomes 'i' (I can't justify this - if you can you should believe this answer much more).
'first' means one lot of letters go next to another.
'in' means one lot of letters goes inside another.
'new' is an anagram indicator.
'ohio' is an anagram of 'hoio'.
'hoio' going around 'poll' is 'hoipollo'.
'i' after 'hoipollo' is 'HOI-POLLOI'.
Can you help me to learn more?
(Other definitions for hoi polloi that I've seen before include "(Often derogatory) term for the masses or common people" , "Riff-raff" , "Plebs" , "The common people - in Greece" , "ordinary people" .)