Kelp or seaweed, for one

Seize suddenly4 Cap-and-gown wearer, for short4 "Diamonds" singer, to her fans4 Yeasty brews4 "The ___ Cat," gothic story by Edgar Allan Poe which follows the story of an unreliable narrator5 Damage the surface3 Eminem's "8 ___"4 It may be right or obtuse5