Crossword Genius

Ruin unloved folk instrument with interminable rock guitar (6)

Ross

I believe the answer is:

banjax

I'm a little stuck... Click here to teach me more about this clue!

'ruin' is the definition.
(I've seen this before)

'unloved folk instrument with interminable rock guitar' is the wordplay.
I cannot really see how this works, but
'instrument' could be 'ban' (ban is a kind of instrument) and 'ban' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for banjax that I've seen before include "Incapacitate" , "Destroy, ruin, damage" , "Ruin (informal)" , "wreck" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app