Rogue failing to get in large country house (5)
I believe the answer is:
villa
'large country house' is the definition.
(I've seen this before)
'rogue failing to get in' is the wordplay.
'rogue' becomes 'villain' (both can mean a dishonourable person).
'failing to get' suggests deleting specific letters.
'villain' with 'in' removed is 'VILLA'.
(Other definitions for villa that I've seen before include "Type of house" , "Ancient Roman's country house" , "Rented holiday home" , "Ancient Roman country house" , "Aston ..., English Premier League club" .)