Answer: goahead

AnswerCrossword Clue
GOAHEAD

"Be my guest"

GOAHEAD

"I'm not stopping you"

GOAHEAD

"Knock yourself out"

GOAHEAD
Permission
GOAHEAD
Approval
GOAHEADLike a tiebreaking run
GOAHEADStarter's signal.
GOAHEADProceed.
GOAHEADAdvance.
GOAHEADGreen light.
GOAHEADKind of signal
GOAHEADGreen light
GOAHEAD"After you"
GOAHEAD"Proceed"
GOAHEAD"Give it a try"
GOAHEADOkay