Answer: staythecourse

AnswerCrossword Clue
STAYTHECOURSE

Persevere

STAYTHECOURSE

Persevere, like a golfer?

STAYTHECOURSE

...and again...

STAYTHECOURSE
Remain focused
STAYTHECOURSE
Don't give up too soon
STAYTHECOURSEPersist to completion
STAYTHECOURSEHang in there
STAYTHECOURSEEndure