Vampire perhaps in Kiribati (3)
I believe the answer is:
bat
'vampire' is the definition.
(I've seen this in another clue)
'in kiribati' is the wordplay.
'in' indicates the answer is hidden within the clue.
'BAT' is hidden within 'kiribati'.
'perhaps' acts as a link.
(Other definitions for bat that I've seen before include "Cricket implement or flying mammal" , "Night-flying mammal" , "A mammal; a club" , "Nocturnal flier" , "Cricket, table-tennis and baseball implement" .)