Answer:

deeps

Answer	Crossword Clue
DEEPS	Back-up over the limit
DEEPS	Back-up, over the limit
DEEPS	Ocean trenches

DEEPS	Undersea regions
DEEPS	Oceans, to poets
DEEPS	Bathysphere's milieu
DEEPS	Oceans, in poetry
DEEPS	Oceans
DEEPS	"Rise O Days from Your Fathomless ..." (Whitman)
DEEPS	Vast extents
DEEPS	Ocean areas

DEEPS	Vast waters
DEEPS	"Far in yon azure ...": Longfellow
DEEPS	Seas.
DEEPS	Ocean's fathoms.
DEEPS	Areas of ocean 3,000 fathoms or more.
DEEPS	Caves of ocean.
DEEPS	Ocean areas.
DEEPS	Profundities.

DEEPS	Abysses of the sea.
DEEPS	Abysses.
DEEPS	Waters of many fathoms.
DEEPS	Oceans.
DEEPS	Areas in the ocean.
DEEPS	Ocean depressions.
DEEPS	Ocean phenomena.
DEEPS	Places in the ocean.

DEEPS	Oceans. poetically
DEEPS	Watery abysses
DEEPS	Poetic seas
DEEPS	Exploits
DEEPS	Intervals on a sounding line
DEEPS	Ocean chasms
DEEPS	Oceans of poetry
DEEPS	Ocean soundings

DEEPS	Abysses
DEEPS	Chasms in the Black and White
DEEPS	Marine abysses
DEEPS	Ocean troughs
DEEPS	Seas, poetically