Answer: doodlebug

AnswerCrossword Clue
DOODLEBUGDivining rod
DOODLEBUGInsect larva
DOODLEBUGRobot bomb.
DOODLEBUGRube Goldberg gadget.
DOODLEBUGSmall "drone" plane.
DOODLEBUGRail-maintenance car
doodlebugany of various small, squat vehicles
doodlebugbuzz bomb
doodlebugthe larva of an antlion
doodlebugdivining rod or similar device supposedly useful in locating underground water, oil, minerals, etc.
doodlebugthe larva of an antlion or other insect; (coll.) a flying bomb of the 1939-45 war