Tough Scot with a little house (5)
I believe the answer is:
macho
'tough' is the definition.
(I've seen this in another clue)
'scot with a little house' is the wordplay.
'scot' becomes 'mac' (many Scottish surnames begin with Mac).
'with' is a charade indicator (letters next to each other).
'a little house' becomes 'ho' (abbreviation for house. I am not sure about the 'little' bit.).
'mac'+'ho'='MACHO'
Can you help me to learn more?
(Other definitions for macho that I've seen before include "Blokeish" , "Exaggeratedly masculine" , "Jock" , "Ramboesque" , "Laddish" .)