A strike in this odd island (6)
I believe the answer is:
tahiti
'island' is the definition.
(Tahiti is an example)
'a strike in this odd' is the wordplay.
'strike' becomes 'hit' ('hit' can be a synonym of 'strike').
'in' is an insertion indicator.
'odd' indicates alternate letters.
The alternate letters of 'this' are 'ti'.
'a'+'hit'='ahit'
'ahit' inserted within 'ti' is 'TAHITI'.
(Other definitions for tahiti that I've seen before include "South Pacific island, capital Papeete" , "Island in South Pacific, chief town Papeete" , "Polynesian island where Gauguin lived" , "Pacific island, Gauguin's home in the 1890s" , "part of Polynesia" .)