Answer: lookout

AnswerCrossword Clue
LOOKOUT

Sentry

LOOKOUT

"Watch it!"

LOOKOUT

Words of warning

LOOKOUT
Take care.
LOOKOUT
Crow's nest.
LOOKOUTProspect.
LOOKOUTBeware!
LOOKOUTBeware.
LOOKOUTWatchman
LOOKOUTBe careful
LOOKOUT"Incoming!"
LOOKOUTSentinel
LOOKOUT"Duck!"
LOOKOUTMember of a heist crew
LOOKOUTRanger's station