The most common and most likely answer to this crossword clue is the 3 letter word JEW
J
E
W
Buddy explains!

The straight part
We know that "One played" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one played = jew.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does JEW mean?
JEW noun- The jewfish.
- To bargain, to attempt to gain an unfair price in a business deal; to defraud.