Chap in swirling rain overlooking a country (9)
I believe the answer is:
argentina
'country' is the definition.
(Argentina is an example)
'chap in swirling rain overlooking a' is the wordplay.
'chap' becomes 'gent' (I've seen this in other clues**).
'in' is an insertion indicator.
'swirling' is an anagram indicator.
'overlooking' says to put letters next to each other (down clues only).
'rain' is an anagram of 'arin'.
'gent' put inside 'arin' is 'argentin'.
'argentin'+'a'='ARGENTINA'
(Other definitions for argentina that I've seen before include "Home of the tango" , "part of 18 [SOUTH AMERICA]" , "Evita's country" , "Silver country" , "Republic" .)