Music for a prankish occasion? (7)
I believe the answer is:
ragtime
'music' is the definition.
(ragtime is a kind of music)
'a prankish occasion?' is the wordplay.
'a prankish' becomes 'rag' (I can't explain this - if you can you should give a lot more credence to this answer).
'occasion?' becomes 'time' (I've seen this before).
'rag'+'time'='RAGTIME'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for ragtime that I've seen before include "Song and dance" , "Early jazz style" , "Kind of music" , "Style of piano music" , "Syncopated music form" .)