Menagerie (3)
I believe the answer is:
zoo
'menagerie' is the definition.
(I know that menagerie can be written as zoo)
This is all the clue.
(Other definitions for zoo that I've seen before include "Garden to display animals" , "Beastly accommodation" , "Whipsnade, for example" , "Large menagerie" , "Chaotic place" .)