Ms Zadora breaking end off musical Irish family's instrument (7)
I believe the answer is:
pianola
'instrument' is the definition.
(Pianola is an example)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for pianola that I've seen before include "A bridge hand easy to play" , "Mechanical piano" , "musical instrument" , "Keyboard without a keyboarder!" , "Mechanical keyboard instrument" .)