Man found around western part of Wales (5)
I believe the answer is:
gwent
'part of wales' is the definition.
(historical Welsh county)
'man found around western' is the wordplay.
'man' becomes 'gent' (gent is a kind of man).
'found around' is an insertion indicator.
'western' becomes 'w'.
'gent' going around 'w' is 'GWENT'.
(Other definitions for gwent that I've seen before include "former Welsh county" , "part of Wales once" , "Region of SE Wales" , "Blaenau - is a Welsh county borough" , "Preserved county of Wales" .)