I wouldn't bother clipping a youngster, especially coming towards summer anyway.
The only time I clip, is my horses in work. Then they get clipped around this time of year (I'm in Aus, so we're just coming into Autumn) and then again around winter solstice before the summer coat starts coming in.
There is no need to clip a horse that is not in heavy work, unless it has cushings.
I'd much prefer to not have to clip, it makes rugging a pain in the backside, so unless you're planning on rugging when it gets cool or wet, leave the coat where it it.