Answer: onemind

AnswerCrossword Clue
ONEMINDAgreement metaphor
ONEMINDBe of ....
ONEMINDOf ... (agreeing)
ONEMINDWith "of," in total agreement
ONEMINDAgreeing, after "of"
ONEMINDWhat those in agreement are said to be of
ONEMINDOf -- (in agreement)