DOUBLE ACROSTIC.
My primals spell what every one is wishing for, and my finals spell where it may come from.
Cross-words (of equal length): 1. A bivalve shell-fish. 2. A Russian feminine name. 3. To lend. 4. A prefix signifying half. 5. Destitution. 6. A part sung by a female voice. 7. A part of speech. 8. A girl's name.
"ŒDIPUS."