Hard Crossword by Hunter

4. superhero uniform minus the superhero
6. Newton was wrong; Instein was wrong; the only understanding you have of me is theoretical
7. a house is made of bricks, I am the glue that holds it all together
9. expensive decorations commonly worn by women
11. an oak tree with unlimited potential
16. pointillism on a living canvas
17. personal display of one's own capabilities and experience
18. a written book that stands for all time but changes every year

1. insect that eats gnats
2. common contraction that separates a word from "s"
3. I am in every bathroom, doctors advise against using me, but I am commonly used
5. bread should rise but not all do; I am the component that makes the difference
8. British game with improper use of hammers
10. I'm not astronomy but I read the stars
12. western hero
13. tax payment to move items
14. overbudget and out of ideas; these multimillion-dollar projects are in every house in the US
15. I'm better than the others; greatest work by a true artist