Answer: deadlocking

AnswerCrossword Clue
deadlockingCause (a contest or game) to be in a tie
deadlockingDEADLOCK, to come to a standstill
deadlockingCause (a situation or opposing parties) to come to a point where no progress can be made because of fundamental disagreement
deadlockingSecure (a door) with a deadlock