Verb
step between (third-person singular simple present steps between, present participle stepping between, simple past and past participle stepped between)
To intervene in a dispute or act as mediator between two people or groups
There is but a step between a proud man's glory and his disgrace. Publilius Syrus
I dream that someday the step between my mind and my finger will no longer be needed. And that simply by blinking my eyes, I shall make pictures. Then, I think, I shall really have become a photographer. Alfred Eisenstaedt
We need an unambiguous rule - a law - that nobody will step between the publisher and the consumer, full stop. Barry Diller