Policemen in some unit reorganised (8)
I believe the answer is:
mounties
'policemen' is the definition.
(Mountie is an example)
'some unit reorganised' is the wordplay.
'reorganised' indicates an anagram.
'some'+'unit'='someunit'
'someunit' with letters rearranged gives 'MOUNTIES'.
'in' acts as a link.
(Other definitions for mounties that I've seen before include "Police force of Canada" , "Canadian federal police" .)