The crossword solution for the term 'IT'S NADA TO NADAL' is LOVE, which has four letters. This phrase is a play on words of the Spanish phrase 'Nada que ver con Nadal, ' which translates to 'Nothing to do with Nadal.' The phrase is often used to describe something that has nothing to do with the famous Spanish tennis player Rafael Nadal. Therefore, the crossword solution of LOVE implies that the phrase has nothing to do with Rafael Nadal, but rather has to do with LOVE.