Reluctant to admit it hurt Britain - rogue (6)
I believe the answer is:
cowboy
'rogue' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'reluctant to admit it hurt britain' is the wordplay.
'reluctant' becomes 'coy' (I've seen this in other clues).
'to admit' is an insertion indicator.
'it hurt' becomes 'ow' (I can't justify this - if you can you should give a lot more credence to this answer).
'britain' becomes 'B' (common abbreviation as in GB).
'ow'+'b'='owb'
'coy' enclosing 'owb' is 'COWBOY'.
Can you help me to learn more?
(Other definitions for cowboy that I've seen before include "Wrangler" , "CARRY ON FILM" , "Sort of builder" , "Hired hand who tended cattle in the old west" , "Cattle herder of the American wild west" .)