Crossword Puzzle Teeming with ideas

Clue: Teeming with ideas

Withdraw from, as a class (DROP with 4 letters)
Withdraw from (SECEDE with 6 letters)
Spray withdrawn in 1989 (ALAR with 4 letters)
It's above the withers (MANE with 4 letters)
Capable of withstanding high temperatures (OVENPROOF with 9 letters)
Religious folks who like to toss ideas back and forth? (FRISBEETERIANS with 14 letters)
Signal withdrawal (SOUNDTHERETREAT with 15 letters)
Parched or withered (SERE with 4 letters)
Withholds an opinion (BITESONESTONGUE with 15 letters)
Not one to try new ideas (PURIST with 6 letters)