Aged drunk abused European royalty (5,4)
I believe the answer is:
grand duke
'european royalty' is the definition.
'grand duke' can be an answer for 'royalty' (thesaurus). I am unsure of the 'european' bit.
'aged drunk abused' is the wordplay.
'abused' is an anagram indicator.
'aged'+'drunk'='ageddrunk'
'ageddrunk' with letters rearranged gives 'GRAND DUKE'.
Can you help me to learn more?
(Other definitions for grand duke that I've seen before include "prince" , "European nobleman" .)