I did my test three times - passed the first and third... But let's not go there.
Before anyone starts (
), this bit is aimed squarely at people riding slowly on suburban roads maybe with an instructor/examiner behind.
If you're taking your turns too wide, you need to slip the clutch as you're going round the bend. This helps you get the bike turned in the same way that closing the throttle while starting the turn on a track helps you find the apex. Riding slowly on the road, in test or traffic conditions, you need some forward drive, so you need some clutch and power, but you also need the gyroscopic effect of the engine to stop the bike falling over. That pushes you too wide if you've got the throttle open and the clutch all the way out, so it's appropriate to keep the revs up
and slip the clutch. Kind of like a big U turn.
But I'm sure your instructor would have told you that already!
BTW, the examiner starts the test with the assumption that you have passed - it's yours, in the bag. Relax, don't put yourself under pressure and you'll pass.