9 across - Kind of arrangement in spring or in fall perhaps. I have - ?L???L
22 across - Allowed to introduce one brother in book. I have ?I???T??
26 across - Trousers 1000 quid? SA settlers took 100,000 maybe. So far I have - ?N???E?????E?S
12 down - United in love, ordered tiny packet of flowers. I have O?U?E and suspect it is ovule, but don't know why.
21 down - Possibly he's uncouth, having forfeited the hots. I've got E?N???