Last few to complete
189a Army Manoeuvres (3) O?S
218a Barrel (4) D?g? (unsure of letters)
232a As a gamble, (2,4) on S?r?
235a Plankton crustaceans (5) ?r?ll
239a West African state ((4) ????
273a Crescent - shaped (7) Si?m?id
199d New world region(7) A?e?i??
206d Barely perceivable movement (5) ?r?e?
Many thanks