Devil hiding tail keeps on with musical work (6)
I believe the answer is:
sonata
'musical work' is the definition.
(type of musical composition)
'devil hiding tail keeps on' is the wordplay.
I cannot quite understand how this works, but
'on' could be 'at' (I've seen this in other clues) and 'at' is found within the answer.
This explanation may well be incorrect...
'with' acts as a link.
Can you help me to learn more?
(Other definitions for sonata that I've seen before include "Instrumental work" , "Music to play (not sing)" , "Musical composition with three or more contrasting movements" , "Work for soloist" , "Musical composition for one instrument or two" .)