Answer: onemind

AnswerCrossword Clue
ONEMIND

Agreement metaphor

ONEMIND

Be of ....

ONEMIND

Of ... (agreeing)

ONEMIND
With "of," in total agreement
ONEMIND
Agreeing, after "of"
ONEMINDWhat those in agreement are said to be of
ONEMINDOf -- (in agreement)