Answer:

swab

Answer	Crossword Clue
SWAB	Cotton ball
SWAB	He may be on deck
SWAB	Mop, as the deck

SWAB	Clean the deck
SWAB	Sea dog
SWAB	Wipe up
SWAB	Tar
SWAB	Q-tip
SWAB	Mariner's mop
SWAB	Clean with a mop
SWAB	DNA-sample collector

SWAB	Mop
SWAB	Applicator
SWAB	Mop on board
SWAB	CSI's DNA collector
SWAB	Q-tip, e.g.
SWAB	Tidy up topside
SWAB	Shipboard mop
SWAB	Deck cleaner

SWAB	Mate with a mop
SWAB	Ointment applicator
SWAB	Wield a mop
SWAB	Q-tip, for one
SWAB	Clear the deck?
SWAB	Use a Q-tip
SWAB	Work on the deck
SWAB	Tar (m)

SWAB	Wash, in a way
SWAB	Crime lab item
SWAB	Hand mop?
SWAB	Forensic evidence collector
SWAB	Work on a deck
SWAB	Q-Tip, for example
SWAB	Clean the poop deck
SWAB	Mop, as decks

SWAB	Ear cleaner
SWAB	Specimen collector
SWAB	Q-Tip, for one
SWAB	Popeye's mop
SWAB	Wash the deck