Possible Clues:

• Very easy
• Not an important court case about six or four
• Insignificant time taken by competitor crossing island
• It's not important whether there are four or six in the court case
• One against appearing in case of little importance
• Of no matter
• Frivolous jaunt cut through centre of Milan
• Four in a trial of little value
• See one wearing suit that's not worth mentioning
• (With 38 Across) Test subject #3 perceives G as blue, E as pink, H as yellow; maybe he likes to play ..