Last few. 18a Philosopher and writer - one feminine Spanish male, one masculine (7) U?A?S?O 25d Boy detective may uncover return of the third man (4) ?M?L EMIL? 4d Twain's gambler's emoticans, perhaps...
One more - 15d Facility with some German characters? I have R?N?C?A?T. I think the last bit must be craft, thought of runecraft, but doubt if that's right....
Have completed this but am not too sure about my solution to 15 down (9) Facilty with some German Characters R?N?C?A?T for which I have Ringcraft - am I correct in my interpretation of this clue? Some...