Haven found among Samoa's islands (5)
I believe the answer is:
oasis
'haven' is the definition.
(I know that haven can be written as oasis)
'among samoa's islands' is the wordplay.
'among' says the answer is hidden in the clue.
'OASIS' is hidden in the letters of 'samoas islands'.
'found' acts as a link.
(Other definitions for oasis that I've seen before include "Green spot; rock group" , "Place of calm in troubled times" , "Desert pool" , "Famous group" , "Feature of desert" .)