Manila's wild creatures (7)
I believe the answer is:
animals
'creatures' is the definition.
('animal' can be a synonym of 'creature')
'manila's wild' is the wordplay.
'wild' is an anagram indicator.
'manilas' is an anagram of 'ANIMALS'.
(Other definitions for animals that I've seen before include "brutal men" , "Beasts, creatures" , "Wild beasts" , "Living beings" , "Brutes" .)