TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: SINGING ACTORS 
Clue: Joey Lawrence was on this hit sitcom in 1993 when he had a Top 20 hit with "Nothin' My Love Can't Fix"

SOLUTION: blossom

PROBLEM: Category: NORSE 
Clue: Skoll & Fenrir, both this type of fierce canine, will cause mayhem at Ragnarok, the end of the cosmos

SOLUTION: wolves

PROBLEM: Category: PREFIXED WORDS 
Clue: This word isn't about wall paintings but the sports of students within a school

SOLUTION:
intramural