pi guy kiddie cryptic

"If you're interested in learning cryptic crosswords, this should be a good start! I tried to include as many different kinds of clues as possible to introduce them all, and most of the clues are very manageable. It's still a good idea to look up a guide/explanation of cryptic crosswords if you're completely unfamiliar, though, because you can't just read them like a normal crossword." This puzzle was made to teach some of the basic cryptic crossword mechanics to my friends who were new to the genre. Interestingly, this was also my first cryptic with rotational symmetry.