Answer:

ATAB

Answer	Crossword Clue
ATAB	Run up ...
ATAB	Run ..: incur bar expenses
ATAB	Run ..: get credit at the pub

ATAB	Run ..: pay after the last drink
ATAB	Run up ..
ATAB	Run ..: postpone the bar bill
ATAB	Words after run or split
ATAB	Run ..: drink on credit
ATAB	Run ... (accumulate debt at the bar)
ATAB	Run ...
ATAB	It may be run at happy hour

ATAB	Run up ... (owe)
ATAB	Run ..: pay later at the bar
ATAB	What bar patrons may run
ATAB	Run up .. (defer payment)
ATAB	Run up .. (owe for drinks)
ATAB	Run .. (owe)
ATAB	Run ... (owe)
ATAB	Run ... (not pay as you go)

ATAB	Run ... (drink on credit)
ATAB	Run up -- (owe at the bar)
ATAB	Run -- (defer payment)
ATAB	Run up -- (drink on credit)
ATAB	Run up ... (defer payment)
ATAB	Runs ... (drinks on credit)
ATAB	Open ... (plan to pay later)
ATAB	Run ... (postpone the bar bill)