Crossword Puzzle Bistro worker

Clue: Bistro worker

Bottles of Evian declared on a bistro worker's return? (WAITERSWATERS with 13 letters)
It allows workers to avoid rush-hour traffic (FLEXTIME-2 with 10 letters)
Spreadsheet worker (USER with 4 letters)
Fast-food worker (SALTER with 6 letters)
Hard worker? (e.g. BOT with 3 letters)
Unpaid workers (SERFS with 5 letters)
Tiny workers of the soil (ANTS with 4 letters)
Worker investment programs, for short (ESOPS with 5 letters)
Sleepy co-worker? (DOC with 3 letters)
Marx's advice to workers (UNITE with 5 letters)