Answer:

CANAL

AnswerCrossword Clue
CANALSuez or Panama
CANALMars phenomenon
CANALBody duct
CANALOpening to the drum
CANALShip's shortcut
CANALShipping shortcut
CANALSeries of locks
CANALIsthmus splitter, maybe
CANALLake-to-lake link
CANALKiel or Caledonian, e.g.
CANALClayton-Bulwer Treaty focus
CANALErie, for one
CANALLock location
CANALPanama crosser
CANALLock site
CANALCivil engineer's project
CANALManmade waterway
CANALOtoscope picture
CANALMars feature
CANALEar part
CANALMartian feature
CANALPanama divider
CANALPlace for a low bridge
CANALErie ..
CANALGrand ..
CANALTowpath locale
CANALNavigational aid
CANALLine on Mars
CANALArtificial waterway
CANALGondola's place
CANALPanama's ... Zone
CANALPassage with locks
CANALAlimentary course
CANAL"Feature" of Mars
CANALPlace for a gondola
CANALMars "feature"
CANALPanama ...
CANALPanama, for one
CANALInland waterway
CANALGondolier's avenue