9 is a direct translation of the scientific name, but isn't the name we most usually use.
23, 26, 4, and 24 are all 16 characters.
in 4 the rugby goal is literal rather than metaphorical.
bananas is an anagram indicator, though it is subtractive - i.e. several letters in the "fodder" aren't in fact included - only one from the firts word, in fact.
6d I've seen similar elsewhere recently the "gong" is an award
8d see jono earlier
25 def. first two words, then follow the instructions
13d see earlier
I found 15d the trickiest to parse. It's a 5 letter word for "way" (as in path) around an anagram. The def. is the last 4 words.