Answer: pushtheenvelope

AnswerCrossword Clue
PUSHTHEENVELOPE

Be groundbreaking

PUSHTHEENVELOPE

Dare to exceed normal limits

PUSHTHEENVELOPE

Test limits

PUSHTHEENVELOPE
Mail carrier's pun (part 3)
PUSHTHEENVELOPE
Flaunt boundaries
PUSHTHEENVELOPERefuse to accept limits
PUSHTHEENVELOPEBe edgy, in a way
PUSHTHEENVELOPEBe daring
PUSHTHEENVELOPEGo to an extreme
PUSHTHEENVELOPENot play it safe
PUSHTHEENVELOPETry to go beyond reasonable limits
PUSHTHEENVELOPEGo to extremes
PUSHTHEENVELOPEExplore new boundaries
PUSHTHEENVELOPEExceed normal boundaries
PUSHTHEENVELOPEStationer's resolution?
PUSHTHEENVELOPEBe innovative
PUSHTHEENVELOPEExceed accepted limits
PUSHTHEENVELOPEExceed normal limits
PUSHTHEENVELOPE... as a mail sorter?