Here are the possible solutions for card that may be one or 11 clue
Answer
Clue
Relevancy
uno
Clue
Colorful card game whose name you have to say when you have only one card left
ace
Clue
___ of spades (card sometimes called "the death card")
Definition
an expert
amex
Clue
Credit card company whose basic level is the Green card
any
Clue
"Pick a card, ___ card"
''Pick a card, ___ card''
"Pick a card, --- card"
"Pick a card, __ card"
"... card, ___ card" (Last week: The two diagonally hidden 18-letter titles were "Up the Down Staircase" and "Upstairs, Downstairs." The latter answer turned downward at the D of "Downstairs.")