Point duet out as a solo piano study (5)
I believe the answer is:
etude
'piano study' is the definition.
(I've seen this in another clue)
'point duet out' is the wordplay.
'point' becomes 'E' (compass point).
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'duet' with letters rearranged gives 'tude'.
'e'+'tude'='ETUDE'
'as a solo' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for etude that I've seen before include "Short composition for a solo instrument" , "Indian statesman" , "Chopin study" , "bit of practice" , "Testing musical composition" .)