Cultivated green aim close to diverse collection of animals (9)
I believe the answer is:
menagerie
'collection of animals' is the definition.
(a menagerie is a collection of animals)
'cultivated green aim close to diverse' is the wordplay.
'cultivated' indicates anagramming the letters.
'close to' says to take the final letters (the close of something is the end).
The final letter of 'diverse' is 'e'.
'green'+'aim'='greenaim'
'greenaim' anagrammed gives 'menageri'.
'menageri'+'e'='MENAGERIE'
(Other definitions for menagerie that I've seen before include "Wild animal collection" , "A collection of wild animals in captivity" , "Exhibited collection of wild animals" , "strange collection of people" , "[TENNESSEE WILLIAMS] work in part" .)