Half-listen to the Bach composition having wine (7)
I believe the answer is:
chablis
'wine' is the definition.
(Chablis is an example)
'half-listen to the bach composition' is the wordplay.
'half' indicates taking half.
'to' says to put letters next to each other (I've seen this in other clues).
'composition' indicates an anagram (letters arranged or composed in a different order).
'listen' halved is 'lis'.
'bach' anagrammed gives 'chab'.
'lis' after 'chab' is 'CHABLIS'.
'having' acts as a link.
(Other definitions for chablis that I've seen before include "Dry white Burgundy" , "Drink" , "Classic white wine from Burgundy" , "French town noted for white Burgundy wines" , "Burgundy town and white wine" .)