18a A must for many to attend on Friday even if no one knows who's whooooo! (5-5,5) no letters
9a They prefer it so .... turning trick or treat to their advantage (10) ??????E?R?
27a Bing gave his name partly to these vocalists (8) no letters
28/24d A ring and a piece of cloth therin -but nothing to do with Halloween . Give up? (5,2,3,5)????? l? ??? ?????
Many thanks-just to get started