### Clue: Mellivorous creature the male is very loud with a protuberance (9)
### Answer: HEFFALUMP 
 ### Explanation: Definition: Mellivorous creature
 HE(third person pronoun for a male) + FF(abbrev. for "fortissimo", a musical instruction to play very loudly) **plus**(with) A + LUMP(a rounded protuberance).
Answer: The honey-eating;mellivorous creature in the Winnie the Pooh stories, though only imagined by Pooh (and Piglet), but not appearing.