1. Space Invaders 
2. politically incorrect 
3. lost in the shuffle 
4. sugar and spice 
5. sitting pretty 
6. pinafore/Pinafore (as in HMS) 
7. Grin 'n' Bear It 
8. mother-in-law
9. examination 
10. a continent 
11. Maid in the Mist 
12. sovereignty (The "g" is silent.) "s"over "e in t"