10A ... AND SO GOES THE CLUE FROM A LANGUAGE UNUSED(8,OR 2,6)?t?e????
5d it could go down as a grounding in the main... or a foundering, remains down to be seen(9)?h?h???c?
16d a creator of cunning disguises?(10)b?a?t?????
17d .. on the framework you work on(4)??t?