Answer: dumbwaiter

AnswerCrossword Clue
DUMBWAITER

Vertical conveyance

DUMBWAITER

Inept eatery server?

DUMBWAITER

Old built-in kitchen convenience

DUMBWAITER
Elevator for dishes
DUMBWAITER
Food-service elevator
DUMBWAITERPortable serving stand.
DUMBWAITERPinter play (with "The").
DUMBWAITERONE OF HIS INVENTIONS
DUMBWAITERTray transporter
DUMBWAITERFood elevator
DUMBWAITERHigh-rise convenience
DUMBWAITERHigh-rise convenience, perhaps
DUMBWAITERServer who won't take tips?