I have heard the term a level playing field very often, but i believe i've heard the expression as an action It is a metaphore, which means the conditions have to be the same, so when it comes to level/levelled plainfield it might mean fair or equal conditions and not advantageous for one of the parties. Can't give you more context because i can't recall when i heard it.
A level playing field meaning We ask for a level playing field when we compete with foreign companies. A situation in which everyone has the same chance of succeeding
We have no objection to competition as long as it is on a level playing field == there's also a verb To level the playing field means to make a situation fair for everyone He wants the government to level the playing field by breaking up large corporations so that smaller companies can compete.
The expression level playing field emphasizes the importance of fairness and equal opportunity in a given situation It's like saying, everyone should have the same chance to succeed or compete. You talk about a level playing field to mean a situation that is fair, because no competitor or opponent in it has an advantage over another
