Have instrument only show in score when notes are played?

Okay, so I have a two-part score (piano and voice) and the voice doesn't come in until bar eleven or so, and even then, it's an anacrusis thing.

My problem is I don't want the voice to show until the notes come in. I've tried Style>General>Hide Empty Staves and that sort of works, but it leaves the first line of the score of just empty bars I want to delete. Any solutions? Thank you.