Cop given nuts spitting out large stones (8)
I believe the answer is:
diamonds
'stones' is the definition.
(I've seen this before)
'cop given nuts spitting out large' is the wordplay.
I cannot quite understand how this works, but
'cop' could be 'di' (detective inspector) and 'di' is located in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for diamonds that I've seen before include "Precious stones found amid nods" , "Components of ring" , "rocks?" , "In song they're a girl's best friend" , "Quarter-deck" .)