Rough Russian outside old hotel (7)
I believe the answer is:
boorish
'rough' is the definition.
Both the definition and answer are adjectives. Perhaps you can see a link between them that I can't see?
'russian outside old hotel' is the wordplay.
'russian' becomes 'Boris' (common Russian name).
'outside' means one lot of letters goes inside another.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'boris' going around 'o' is 'booris'.
'booris'+'h'='BOORISH'
Can you help me to learn more?
(Other definitions for boorish that I've seen before include "Rude - vulgar - rustic" , "Ill-mannered and insensitive" , "Coarse - ill-mannered" , "Uncouth" , "Coarse, rough or rude" .)