@jolm,
Hi jolm, have posted mine off but these answers I had
98d Uni graduates ?l?m?i ALUMNI
22a Inordinate ?oo TOO
145a twitch ?a?lm SPASM (116d insuperable, 108d stapes)
228a Hazelnut ?a???rt FILBERT (216d origami)
217d shag c???c?o TOBACCO (215a volteface)
271 tiny mosaic tile T??s?r?e TESSERAE
hope that helps you complete your grid hopefully someone will confirm my answers for you, best of luck sandray