Answer:

raceagainsttime

AnswerCrossword Clue
RACEAGAINSTTIMEDesperate dash
RACEAGAINSTTIMEDash with a deadline
RACEAGAINSTTIMEAttempt to beat the clock
RACEAGAINSTTIMERush to beat a deadline
RACEAGAINSTTIMEWhat a bomb defuser may be in