It's played with pluck (4)
'it's played' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for banjo that I've seen before include "Stringed instrument like guitar with round body" , "Stringed instrument with long neck" , "Instrument with long neck and round body" , "strumming instrument" , "something that's played on" .)
But I've got no explanation for this one! Could you help me understand?
(Other definitions for harp that I've seen before include "''The ... that once through Tara's halls'' (4)" , "Heavenly instrument?" , "Large plucked instrument" , "Emblem of Ireland" , "Talk tiresomely using upright musical instrument" .)