One at a time definition

One at a time

1) How to peel grapes 2) How waiters take orders 3) In indian file 4) In single file 5) Individually 6) Revolving door recommendation 7) Shout to an impatient crowd 8) Shout to an unruly group 9) Singly 10) Successively 11) Words of a busy ticket-taker
Found on https://www.crosswordclues.com/clue/one-at-a-time

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