Students should be in class before them, 9 letters
Delayed developer (with an up-front charge), 11 letters
Slow-to-mature sort, 11 letters
Slow developer's attire, 12 letters
Some ugly ducklings, so to speak, 12 letters
Brunch, essentially, 13 letters
Iggy reported on the delayed start at the billiards tournament so he could yell ___!, 16 letters