Answer:

tray

Answer	Crossword Clue
TRAY	Salver
TRAY	Cafeteria-stack item
TRAY	Server

TRAY	Waiter's aid
TRAY	Waiter's load
TRAY	Waiter's tote
TRAY	Dessert ....
TRAY	Busing aid
TRAY	Petit fours server
TRAY	High-chair part
TRAY	Passenger's prop

TRAY	Highchair part
TRAY	Cafeteria carrier
TRAY	Slider in a cafeteria
TRAY	Surgical-instrument holder
TRAY	Cafeteria item
TRAY	Busboy's aid
TRAY	Butler's need
TRAY	Caterer's carrier

TRAY	Breakfast-in-bed item
TRAY	Carhop's carrier
TRAY	Serving aid
TRAY	Something for carrying a round
TRAY	Waiter's burden
TRAY	Buffet unit
TRAY	Cafeteria slider
TRAY	Handy carrier

TRAY	One in a cafeteria stack
TRAY	Room service item
TRAY	Flier's "table"
TRAY	Highchair feature
TRAY	Cafeteria staple
TRAY	Room service convenience
TRAY	Butler's carrying aid
TRAY	Highchair component

TRAY	Projector's slide holder
TRAY	Caterer's delivery
TRAY	Inbox, sometimes
TRAY	Cafeteria convenience
TRAY	Printer paper holder