Answer: tinhorns

AnswerCrossword Clue
TINHORNS

High-roller wannabes

TINHORNS

Two-bit gamblers

TINHORNS

Small-timers, in slang

TINHORNS
Petty tyrants
TINHORNS
Small-time gamblers
TINHORNSCheap, flashy gamblers (a word much used by La Guardia).
TINHORNSSmall-time gamblers.
TINHORNSCheap sports.
TINHORNSBoastful gamblers: Slang.