Some chocolate brought over in perfect case of cocoa beans (7)
I believe the answer is:
arabica
'beans' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'some chocolate brought over in perfect case of cocoa' is the wordplay.
'some chocolate' becomes 'bar' (I've seen this before).
'brought over' is a reversal indicator.
'in' means one lot of letters goes inside another.
'perfect' becomes 'ai' (I've seen this in other clues).
'case of' suggests removing the centre (outsides of).
'cocoa' with its centre removed is 'ca'.
'bar' in reverse letter order is 'rab'.
'rab' inserted into 'ai' is 'arabi'.
'arabi'+'ca'='ARABICA'
Can you help me to learn more?
(Other definitions for arabica that I've seen before include "Type of coffee bean" , "Variety of coffee beans" , "hot beverage" , "Shrubby tree of tropical Africa cultivated for coffee" , "Variety of coffee bean" .)