Stuck on a crossword? Discover the answer to ‘Before, once’!

1. Prior to, formerly
2. Ahead of time, in advance
3. Previously, hitherto
4. Ex-ante, aforehand
5. Preceding, anterior to
6. Sooner than, antecedently
7. In yore, erewhile
8. Bygone, sometime before
9. Beyond, erstwhile
10. Backward, in the past