Sorry, I'm not being lazy, honest, I just can't find the answers to four clues...
23a Palm with creeping roots and long feathery leaves, considered a mangrove and common in swamps of India and the Pacific Islands n?p?
25a Motif of two or more interwoven letters, especially initials ?o?o?s?m
43d Species of African antelope with a chestnut coat with white stripes b?n?o