From the Isle of Man (4)
I believe the answer is:
manx
'from the isle of man' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for manx that I've seen before include "From an isle in the Irish Sea" , "To do with the Isle of Man - say a cat" , "Sort of cat (from Douglas?)" , "Isle of Man's language" , "The natives' language" .)