10A - Cold potato for Indian fellow's starter ( 5 ) P?O?F
15A - A Greek record covered by a Norwegian band ( 6 ) I???H?
16A - Incompetent chum ending a stroll ( 6 ) ?M????
8D - Border guard's third objection ( 6 ) A??T??
Last letters of 16A and 8D are same letter.
Thanks in advance.