Two to go and very unsure....
24a Bewildering affair in which Othello, say, loses head (8) -L-O-I-G
So I guess this means bewildering somehow with a word for Othello but the first letter removed. (shakes head)
Also 44a A British politician once knocked back old port (6) -I-B-O
So either the name of a politician or perhaps B+MP? or the name of a port.
Any help gratefully recieved, thank you.