Enter a clue or pattern or both:
The Clue
Gets upset (11 letter answer)
The Answer
ANTAGONIZES
Tags
Notes
The answer ANTAGONIZES is so rare that it appears less than once every 2500 puzzles.
Definition
ANTAGONIZE as a verb:
1. (antagonize, antagonise) = provoke the hostility of; "Don't antagonize your boss"
2. (antagonize, antagonise, counteract) = act in opposition to