Enter a clue or pattern or both:
The Clue
Killjoy (10 letter answer)
The Answer
SPOILSPORT
Tags
Notes
The answer SPOILSPORT is so rare that it appears less than once every 2500 puzzles.
Definition
SPOILSPORT as a noun:
1. (spoilsport, killjoy, wet blanket, party pooper) = someone who spoils the pleasure of others