
1) Cthulhu Mythos deity 2) Fictional amorphous creature
Found on
https://www.crosswordclues.com/clue/ghatanothoa

Ghatanothoa is a fictional deity in the Cthulhu Mythos. The being first appeared in the short story `Out Of The Aeons` (1935) by H. P. Lovecraft and Hazel Heald. It is a large, amorphous, exceptionally hideous being comparable to Medusa. ==Summary== Ghatanothoa is a Great Old One and the first born of Cthulhu. It is a huge, amorphous monstrosity.....
Found on
http://en.wikipedia.org/wiki/Ghatanothoa
No exact match found.