European flag at front of hotel (5)
I believe the answer is:
irish
'european' is the definition.
(I've seen this before)
'flag at front of hotel' is the wordplay.
'flag' becomes 'iris' (type of iris flower).
'at front of' says to take the initial letters.
The initial letter of 'hotel' is 'h'.
'iris'+'h'='IRISH'
(Other definitions for irish that I've seen before include "of European country" , "Kind of whiskey" , "Reddish-brown dog" , "Passion" , "like Wexford" .)