Answer:

listen

Answer	Crossword Clue
LISTEN	"Hark!"
LISTEN	Spend time with one's buds?
LISTEN	Pay attention

LISTEN	Eavesdrop
LISTEN	Attend
LISTEN	"Psst!"
LISTEN	Show interest
LISTEN	Not tune out
LISTEN	First word of Longfellow's "Paul Revere's Ride"
LISTEN	Lend an ear
LISTEN	Enjoy a CD

LISTEN	Hark!
LISTEN	"Hear me out"
LISTEN	".., my children, and you shall hear ... ": Longfellow
LISTEN	Tune in
LISTEN	Prick up one's ears
LISTEN	First word of "Paul Revere's Ride."
LISTEN	Give heed.
LISTEN	Eavesdrop.

LISTEN	Part of a railroad crossing sign.
LISTEN	Duty at R. R. crossings.
LISTEN	Take advice.
LISTEN	Attend closely.
LISTEN	What monitors do.
LISTEN	Give heed to.
LISTEN	Yield to advice.
LISTEN	Lend an ear.

LISTEN	Pay attention.
LISTEN	Attention-getting cry.
LISTEN	Heed.
LISTEN	Give ear to.
LISTEN	Attend a lecture
LISTEN	Hearken
LISTEN	Heed
LISTEN	Take advice

LISTEN	Hark
LISTEN	"..., my children . . . "
LISTEN	"See here!"
LISTEN	"..., my children, and . . . "
LISTEN	... to reason