Answer: slowedup

AnswerCrossword Clue
SLOWEDUPDecelerated
SLOWEDUPInhibited
SLOWEDUPImpeded
SLOWEDUPApplied the brakes
SLOWEDUPDelayed.
SLOWEDUPReduced speed
SLOWEDUPTook the foot off the accelerator
SLOWEDUPExercised caution, in a way