Country fellow in pursuit of love (4)
I believe the answer is:
oman
'country' is the definition.
(Oman is an example)
'fellow in pursuit of love' is the wordplay.
'fellow' becomes 'man' (I've seen this before).
'in pursuit of' means one lot of letters go next to another.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'man' put after 'o' is 'OMAN'.
(Other definitions for oman that I've seen before include "Middle Eastern country" , "Sultanate on the south-east coast of the Arabian Peninsula" , "Gulf sultanate" , "Sultanate, capital Muscat" , "Muscat's country" .)