Answer: holdem

AnswerCrossword Clue
HOLDEM

Poker variation

HOLDEM

Poker variant played in 2006's "Casino Royale"

HOLDEM

Poker variety ... and what the four longest across answers do?

HOLDEM
"Texas" poker variety
HOLDEM
Game that reportedly originated in Texas
HOLDEMTexas ..: poker game
HOLDEMPoker variety
HOLDEM"World Series" game
HOLDEMFootball yell: 2 wds.
HOLDEMVariety of poker
HOLDEMWorld Series of Poker game
HOLDEMTexas -- (poker game)
HOLDEM"No-limit" game
HOLDEMWorld Poker Tour game
HOLDEMPoker variant