This link will tell you. http://wordsmith.org/anagram/
Resignation is correct.
Your spelling is correct.
The words with the pronunciation strate are:straight (adjective) - in an uncurved line, organizedstrait (noun) - a comparatively narrow body of water between seas or oceans
The dangerous sport (from Harry Potter) is spelled quidditch.
That is how you spell Pittsburgh if it's the one in Pennsylvania. Other states (Kansas, for example) have a town called Pittsburg.