Stuck on three all help greatly appreciated thank you!
63a Language spoken in 43 across (for which I have the answer as Himalayas)
by a member of a people of the same name. (8) -A-H-I-I.
I thought it was tibetan but it doesn't fit and I'm fairly sure that I have the others right.
107a Simple but elegant garment designed to remain a la mode despite changes in fashion. (7) C_A_S_C. oh! Just got that one CLASSIC!!
66d Musical direction indicating that all musicians mst perform together. (5)
_U_T_