Small-timer

You're no small-timer, Tom.

Source: tatoeba (6915183)

She hated Ed Feinberg, the sleazy, lying, blood-sucking small-timer. Still he was a man; if he had called her up in the old days, in Seattle, she'd have entertained him.

Source: wiktionary

The small-timers, as he put it, kept their currency in their homes, in safes, in false ceilings, under beds. When necessary, our tax people know where to look. The big-timers, however, use Swiss banks.

Source: wiktionary

“If he's smooth, he don't have to worry too much about the cops, because he's such a small-timer, and when they come around, he cooperates. […]”

Source: wiktionary