Deposit fruit and veg, by the sound of it (9)
I believe the answer is:
limescale
'veg by the sound of it' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'deposit fruit' is the wordplay.
I cannot really see how this works, but
'deposit' could be 'scale' (eg limescale) and 'scale' is located in the answer.
'fruit' could be 'lime' (lime is a kind of fruit) and 'lime' is present in the answer.
No letters remain.
This explanation may well be incorrect...
'and' is the link.
Can you help me to learn more?
(Other definitions for limescale that I've seen before include "Flaky deposit in kettle" , "Kettle's encrustation" , "in the water that's the hard part" , "flaky stuff" , "It builds up on pipes and kettles" .)