Old fellow’s country (4)

I believe the answer is:

oman

'country' is the definition.
(Oman is an example)

'old fellow's' is the wordplay.
'old' becomes 'o' (abbreviation).
'fellow' becomes 'man' (fellow can mean a man).
'o'+'man'='OMAN'

(Other definitions for oman that I've seen before include "Arabian country, capital Muscat" , "Arabian peninsula country" , "Arab state" , "Gulf sultanate" , "Middle Eastern country" .)

I've seen this clue in The Times.

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