Answer: locks

AnswerCrossword Clue
LOCKSThey may flow
LOCKSCanal features.
LOCKSIntertwines
LOCKSParts of the St. Lawrence Seaway
LOCKSCanal sights
LOCKSRapunzel feature
LOCKSDeadbolts
LOCKSPlaces for oars
LOCKSMore than shuts
LOCKSDoor securers
LOCKSAnti-theft devices
LOCKSParts of waterways.
LOCKSWhat members of Set 1 have
locksA number of interlocked or jammed items
locksAn airlock
locksLOCK, to secure with a fastening device
locksA similar device used to prevent the operation or movement of a vehicle or other machine
locksA mechanism for keeping a door, lid, etc., fastened, typically operated only by a key of a particular form
locksA person or thing that is certain to succeed; a certainty
locksA mechanism for exploding the charge of a gun
locksA short confined section of a canal or other waterway in which the water level can be changed by the use of gates and sluices, used for raising and lowering vessels between two gates
locks(in wrestling and martial arts) A hold that prevents an opponent from moving a limb
LOCKSCloses securely
LOCKSHair
LOCKSSecures using a key
LOCKSSecurity devices
LOCKSShuts securely
LOCKSWrestling holds
LOCKSCanal features
LOCKSParts of the Panama Canal
LOCKSYale produces them
LOCKSTresses
LOCKSBolts
LOCKSSecures
LOCKSCanal components
LOCKSSecures with a key
LOCKSSure bets
LOCKSGatun ... of the Panama Canal.
LOCKSParts of the Panama Canal.
LOCKSCanal gates.