The piano duet is somehow held to induce a row (7)
I believe the answer is:
dispute
'a row' is the definition.
(I've seen this before)
'the piano duet is somehow' is the wordplay.
'the piano' becomes 'p' (musical abbreviation).
'somehow' indicates anagramming the letters.
'p'+'duet'+'is'='pduetis'
'pduetis' anagrammed gives 'DISPUTE'.
'held to induce' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for dispute that I've seen before include "conflict" , "Quarrel over rights" , "Argue about (something)" , "Altercation" , "Disagree or challenge" .)