Answer:

river

AnswerCrossword Clue
RIVERDon or Lena
RIVERConnecticut or Delaware
RIVERBank depositor?
RIVERColorado or Missouri
RIVERNatural boundary
RIVERBanks hold it
RIVERIts mouth is nowhere near its head
RIVERMissouri or Delaware
RIVERFork and mouth locale
RIVERLate actor Phoenix