Ace encore music playing – without American cornet (3-5,4)
I believe the answer is:
ice-cream cone
'cornet' is the definition.
(I've seen this before)
'ace encore music playing without american' is the wordplay.
I cannot really see how this works, but
'ace' could be 'one' (synonyms) and 'one' is present in the answer.
'music' could be 'e' and 'e' is found within the answer.
'american' could be 'am' (abbreviation in some contexts) and 'am' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ice-cream cone that I've seen before include "Rolled wafer container" , "Cornet" .)