Answer:

ticks

Answer	Crossword Clue
TICKS	Watch sounds
TICKS	Check marks
TICKS	Time pieces?

TICKS	Units of time?
TICKS	Passes (by), as time
TICKS	Time issue?
TICKS	Beats
TICKS	Watch noises
TICKS	... off (annoys)
TICKS	Sounds of passing time
TICKS	The sounds of time?

TICKS	Pests that might plague your pet
TICKS	Checklist marks
TICKS	Functions well
TICKS	Clock sounds
TICKS	Grandfather clock sounds
TICKS	Mattress bags.
TICKS	Marks serving as checks.
TICKS	Check marks.

TICKS	Sounds by the second.
TICKS	Metronome sounds.
TICKS	Bedding covers
TICKS	Summer pests
TICKS	Clock talk
TICKS	Tees (off)
TICKS	Sounds of time passing
TICKS	Seconds on a watch

TICKS	Indication of time passing
TICKS	Soundtrack to many a bomb-defusing scene
TICKS	There are 60 in a minute
TICKS	Dog pests
TICKS	Indication of seconds passing
TICKS	To-do list markings
TICKS	To-do list notations