Middle Eastern chap on Love Island (5)
I believe the answer is:
omani
'middle eastern' is the definition.
(I've seen this before)
'chap on love island' is the wordplay.
'chap' becomes 'man' (chap can mean a man).
'on' says to put letters next to each other.
'love' becomes 'o' (love means zero in tennis).
'island' becomes 'i' (geographical abbreviation).
'man' put after 'o' is 'oman'.
'oman'+'i'='OMANI'
(Other definitions for omani that I've seen before include "Citizen of a country, capital Muscat" , "Someone from Muscat" , "Inhabitant of Middle Eastern sultanate" , "Gulf native" , "coming from the Middle East" .)