*Woolly ___, extinct gigantic tusker...and a hint to solve 16a, 33a, 11d, 15d, and 44d

On ___ with (at the same level)3 School fundraising group: Abbr.3 Appendage that may be rested on a recliner3 Below-the-ground plant part4 Bodybuilder's chest muscle, for short3 Meal at the park with friends, say6 Jazz legend Fitzgerald referred to as the "First Lady of Song"4 Bangs holder4