"Famous potatoes" appears on its standard license plates:
DH
Idaho
Using her first name spelled backwards, Aneres was a fashion label launched in 2004 by a legend in this sport
tennis
Ferns are plants that reproduce using spores, which means they don't grow flowers & they don't produce or spread these
seeds
Predating Plymouth's by over 40 years, the first Thanksgiving held by Europeans in North America was in this country
Canada
Using this word is the chess version of a mic drop; it means escape for your opponent's king has become impossible
checkmate
One of the "Four Corners" states:
RZN
Arizona
In this picture book series, a longtime antagonist is Odlaw; read his name backwards & it makes sense
Decayed ferns from the Carboniferous Period helped create this fossil fuel; we still use it today
coal
A show of gratitude for workers, Japan's modern tradition of Labor Thanksgiving Day began in 1948, 3 years after this conflict ended
World War 2
This chess piece often looks like a horse but it's named after the chivalrous guy who might ride one
Where "Roll Tide!" & "War Eagle!" are often shouted:
LBM
Alabama
We see what you did there, Ms. Winfrey; the media mogul gave her production company this name in 1990 by reversing her first nam
Harpo
This "F" word refers to the leaves of a fern, which are often featherlike in shape; it can apply to palm leaves, too
frond
DAILY DOUBLE
A show of gratitude for workers, Japan's modern tradition of Labor Thanksgiving Day began in 1948, 3 years after this conflict ended
ANSWER: Plantain
Often shortened to "GM", it's the highest title conferred on players by the International Chess Federation
Grandmaster
In 1973 it became the first state to decriminalize marijuana possession:
RGN
Oregon
Filled with healthy vitamins, a half-cup of asparagus also contains a gram of this substance spelled backwards in "asparagus"
sugar
Some ferns are epiphytic, meaning they grow on plant surfaces like tree trunks; others are epipetric, meaning they grow on these
rocks
Fall is the season of Erntedankfest, which means "harvest festival of thanks", in countries that speak this language
German
This Emmy-winning series about a chess prodigy took its name from one of the game's oldest & best-known openings
The Queen's Gambit
The only state that touches the Arctic Ocean:
LSK
Alaska
It's the insurance giant famously bailed out in 2008 whose stock ticker symbol appears backwards in "Giant"
AIG
Because they're shaped like the scroll of a violin, the curled-up leaves of young ferns are called these, & you can eat them
fiddleheads
Founded in the 1800s by freed slaves, it's one of the few African countries to recognize Thanksgiving as an official holiday
Liberia
Feeling bouncy? Try this special strategic move; it's the only time a player can move two pieces at once
Castle or castling