Part of Hispaniola (5)
I believe the answer is:
haiti
'part of hispaniola' is the definition.
('Haiti' is part of 'hispaniola')
This is the entire clue.
(Other definitions for haiti that I've seen before include "West Indian country, capital Port-au-Prince" , "I hit a West Indian island" , "West Indian republic" , "Country SE of Cuba" , "Western half of Hispaniola" .)