Cross Purposes

Players take turns building a crossword puzzle in the provided grid using a hand of random clues and a hand of letter tiles. Clues come in five types:
Same or Opposite: the solution is a synonym or antonym of the clue word.
Crossword Clue: the solution word and the clue word are broadly related, perhaps in a punning way.
A Word Including: the solution word contains the clue word.
Clue It Yourself: the solution word may be any word, provided the player provides a suitable clue.
Found With: the solution word and the clue word are found together in some phrase.
Words are scored at a simple one point per letter.