Answer:

AHEM

Answer	Crossword Clue
AHEM	"May I interrupt?"
AHEM	"Pardon me"
AHEM	Attention-getter

AHEM	Attention-getting sound
AHEM	Throat-clearing sound
AHEM	"Beg pardon"
AHEM	"Excuse me?"
AHEM	Excuse me!
AHEM	Attention-getting word
AHEM	"Excuse me!"
AHEM	Status vehicle

AHEM	Throat-clearing onomatopoeia
AHEM	"Don't interrupt me, jackass"
AHEM	"I'm standing RIGHT HERE"
AHEM	"Um, hello, I'm stading right here"
AHEM	"Do you mind?"
AHEM	"Excuse me ..."
AHEM	"Beg pardon ..."
AHEM	Interrupter's sound

AHEM	Attention getter
AHEM	Your attention, please
AHEM	Throat-clearer
AHEM	"May I speak?"
AHEM	"Listen up!"
AHEM	"Harrumph"
AHEM	"Hey, listen up"
AHEM	"Excuse me..."

AHEM	Polite interruption
AHEM	"May I have your attention?"
AHEM	Throat clearer
AHEM	"I'd like to say something"
AHEM	Sound made before speaking
AHEM	Attention-getting noise
AHEM	"I'm still in the room, y'know"
AHEM	[I'm standing right here!]

AHEM	[Attention, please]
AHEM	Word to one who isn't listening
AHEM	"Beg pardon..."
AHEM	"Psst" relative
AHEM	Doubting sound