Being British, perhaps, lives with a man (5)
I believe the answer is:
isles
'being british perhaps' is the definition.
I can't judge whether this defines the answer.
'lives with a man' is the wordplay.
'lives' becomes 'is' ('be' can be a synonym of 'live').
'with' means one lot of letters go next to another.
'a man' becomes 'les' ().
'is'+'les'='ISLES'
Can you help me to learn more?
(Other definitions for isles that I've seen before include "The Hebrides for instance" , "eg the Scillies" , "Hebrides, perhaps" , "The road to these is a wellknown Scottish song" , "Archipelago" .)