Answer: caser

AnswerCrossword Clue
CASERContainer maker.
CASERRobber's advance man
CASERThief in the planning stage
CASERBank robber's advance man
CASEROne checking out a place in planning a crime
CASERBurglar's advance man, maybe
CASERPacker
CASERBoxing is his job
CASERBoxing is his "bag"
CASEROne monitoring a joint
CASERJoint watcher
CASERHood planning a heist, perhaps
CASERWorker in book binding.
CASERShipping clerk, for example.
CASERCrater.
CASERAdvance man for a bank robber.
CASERMaker of boxes.
CASERBoxer.
CASERBox maker.
CASERPacker.
CASERCrime planner