Answer: NIXIE
The answer NIXIE has 9 possible clues. See the results below.
Possible Clues:
- Water sprite
- Undeliverable letter
- Dead letter, in a mail sorter's vernacular
- In America nothing starts to irritate except watery spirit
- Unfriendly female water-spirit
- Unfriendly female water sprite
- Germanic water sprite
- Undeliverable letter, to a postal worker
- A German upcoming eleven gets in the spirit