The answer is either quite simply a tree or a word that has a tree in it so then you just put the tree name eg 5 line poem by Edward Lear (4 letters) answer Lime (limerick)
How are you finding earthakittens new quiz smouse?
I haven't looked at it yet!
Hope it is a bit easier than her last one. At least there are no logos :-)
I am absolutely terrible at clues but presume as yet you dont want the answers
10 is an anagram
21 not sure about this one but one of the characters names changed a bit
38 look more closely
39 just put that into google and you get a big word and the tree is in it