Answer:

onme

Answer	Crossword Clue
ONME	This one is ....
ONME	Treater's words
ONME	Treater's phrase

ONME	"My treat"
ONME	"The joke's ..."
ONME	"I got this one"
ONME	"No, no; put down that check"
ONME	"It's .." ("I'll pay")
ONME	"Don't Tread .."
ONME	"It's ..." ("I'll pay")
ONME	"Drinks are ..!"

ONME	1972 song, "Lean .."
ONME	Where not to tread
ONME	"I've got this one"
ONME	"Lean .."
ONME	"Don't Tread ..."
ONME	"Don't tread ..." (Gadsden flag motto)
ONME	"The next round is ...!"
ONME	"I'll treat!"

ONME	Big sport's offer
ONME	Treater's offer
ONME	Welcome words at a bar
ONME	"This one's ..!"
ONME	"My treat!"
ONME	Generous words
ONME	"I guess the joke's .."
ONME	"I've got the check"

ONME	"You treated last time!"
ONME	"Dinner is .."
ONME	"Drinks are .."
ONME	"I'm treating"
ONME	Generous offer
ONME	Round-buyer's words
ONME	Tab-grabber's words
ONME	Bar buyer's words

ONME	"Guess the joke's .."
ONME	Drink buyer's words
ONME	Pub offer
ONME	"I got it"
ONME	"I'll pay"