Answer: elmoroper

AnswerCrossword Clue
ELMOROPERPolling pioneer
ELMOROPERPioneer pollster
ELMOROPEROne of the poll-takers.
ELMOROPERRanch worker becomes pollster
ELMOROPERGeorge Gallup competitor
ELMOROPERTree branches to pollster?
ELMOROPERNoted pollster