Intoxicating Elgar composition (5)
I believe the answer is:
lager
'composition' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'intoxicating elgar' is the wordplay.
'intoxicating' is an anagram indicator.
'elgar' anagrammed gives 'LAGER'.
Can you help me to learn more?
(Other definitions for lager that I've seen before include "light ale" , "Type of beer" , "Tipple" , "Effervescent beer" , "Drink - 5 down (anag)" .)