Answer:

SEA

Answer	Crossword Clue
SEA	"... of Love" (Pacino film)
SEA	Bering or Beaufort
SEA	Doddering

SEA	Multitude
SEA	Neptune's domain
SEA	Poseidon's realm
SEA	Ray's residence
SEA	Red or Coral
SEA	Shipping choice
SEA	Word before horse or cow
SEA	.. biscuit (hardtack)

SEA	.. legs (nautical steadiness)
SEA	.... biscuit (hardtack)
SEA	Black or Red
SEA	Bounding main
SEA	Red or Yellow
SEA	Ross or Bering
SEA	Sulu, e.g.
SEA	Water front?

SEA	Cruise milieu
SEA	Ocean
SEA	Overwhelming amount
SEA	Rachel Carson subject
SEA	Red or Dead
SEA	".... Biscuit"
SEA	Diver's milieu
SEA	Kind of serpent

SEA	.... biscuit
SEA	Body of salty water
SEA	It makes waves
SEA	... cucumber
SEA	Poseidon's domain
SEA	Subject of a famous part in the Bible
SEA	What spreads over some beds?
SEA	Where to find a grunion or a hydra

SEA	General admission rarity
SEA	One might spend a semester at it
SEA	Sargasso, for one
SEA	What mare means
SEA	Where buoy meets gull