Hill, perhaps, where most diamonds can be found or cut (5)
I believe the answer is:
damon
'hill perhaps' is the definition.
(racing driver Damon Hill)
'most diamonds can be found or cut' is the wordplay.
I cannot really understand how this works, but
'diamonds' could be 'd' (abbreviation for the card suit diamonds) and 'd' is located in the answer.
'be' could be 'am' and 'am' is found within the answer.
The remaining letters 'on' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'where' acts as a link.
Can you help me to learn more?
(Other definitions for damon that I've seen before include "Matt --, US actor" , "Pythias's friend" , "Writer Runyon's first name" , "faithful friend" .)