Put a bit of lard in ground wheat to get richness (6)
I believe the answer is:
wealth
'richness' is the definition.
(I know that richness can be written as wealth)
'put a bit of lard in ground wheat' is the wordplay.
'put' indicates putting letters inside.
'a bit of lard in' becomes 'l' (I can't explain this - if you can you should believe this answer much more).
'ground' indicates an anagram ('grind' the letters into a new form).
'wheat' is an anagram of 'weath'.
'l' inserted into 'weath' is 'WEALTH'.
'to get' is the link.
Can you help me to learn more?
(Other definitions for wealth that I've seen before include "was common under Cromwell" , "Mammon" , "'Riches, affluence (6)'" , "capital" , "Material worth" .)