Enter a clue or pattern or both:
The Clue
Thwarts by advance action (10 letter answer)
The Answer
FORESTALLS
Tags
Notes
The answer FORESTALLS is so rare that it appears less than once every 2500 puzzles.
Definition
FORESTALL as a verb:
1. (prevent, forestall, foreclose, preclude, forbid) = keep from happening or arising; make impossible; "My sense of tact forbids an honest answer"; "Your role in the projects precludes your involvement in the competitive project"
2. (anticipate, foresee, forestall, counter) = act in advance of; deal with ahead of time