Exceptional words

"I before E except after C" is a rule we learn in spelling class. But there are exceptions to that rule. Can you identify the ones clued below?

-1. Off the wall; odd
-2. Full of spunk
-3. Homo sapiens sapiens or Canis familiaris
-4. On the lam
-5. National park in Montana
-6. Mexican plantation
-7. Too much keeps you up at night
-8. The loan arranger
-9. Describes "The Age of Reason" or "The Roaring Twenties"
-10. Fast and able
-11. For peace of mind, keep it clear
-12. Hollywood's notorious madam
-13. "Plop plop fizz fizz," for example
-14. Belief you bring with you to your next life

7. caffeine

6. hacienda

2. feisty

11. conscience

1 - weird

6.cactus

5. Glacier

14. theism

12. Heidi Fleiss

3 - species ?

10. efficient

I think this snippet from the British television show QI belongs here:
https://www.youtube.com/watch?v=duqlZXiIZqA

Delightful snippet! And some great answers! I've got a different one for #14.

14. reincarnation?

13. onomatopoeia

Both correct!

8. financier

4. Fleeing

Two toughies! The last answer begins with a Z.

9. Zeitgeist

Yes!