Scheming fellow I draw endlessly with musical backing (12)
I believe the answer is:
manipulative
'scheming' is the definition.
Both the answer and definition are adjectives. Perhaps you can see a link between them that I can't see?
'fellow i draw endlessly with musical backing' is the wordplay.
I cannot really see how this works, but
'fellow' could be 'man' (fellow can mean a man) and 'man' is present in the answer.
'i' could be 'a' and 'a' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for manipulative that I've seen before include "Exercising unscrupulous control (over others)" , "as a physiotherapist?" , "Inclined to control others" , "Machiavellian" , "Unscrupulously controlling" .)