I'm really stuck on the last four. Any help would be greatly appreciated.
26a: Makes a long-lasting wave in poolss perhaps. _E_ _
34a: Bill you might pick up on Los Angeles Indian drums. _ _ B _ A
24d: Tomas ___, 18th century poet and teacher from Quin, Co. Clare. O_ _ O_H_ _N
28d: Some fire taken out of September's clans. SE_ _ _
Merry Christmas Everybody!