9 Across: What a royal state to be in down under! its has 10 letters. Q?E?N???N?
15 Across: ...skilled enough for some drab lesson. its has 4 letters. ??L?
6 Down: Disturbing backlash from the mountain erupting. its has 5, 3 letters. ?L?C???H.
27 Down: They're knocked down by the numbers. Its has 4 letters. L?T?