Where you might buy real coffee - from an accountant (4,7)
I believe the answer is:
bean counter
'accountant' is the definition.
(I know that bean counter is a type of accountant)
'where you might buy real coffee from an' is the wordplay.
I cannot really understand how this works, but
'you' could be 'u' (commonly used in online communication) and 'u' is found in the answer.
'real' could be 'e' (e is a kind of real) and 'e' is found within the answer.
'from' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
'an' could be 'a' and 'a' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bean counter that I've seen before include "Accountant, colloquially" , "Accountant (slang)" , "Cost-conscious bureaucrat" , "stingy financial official?" , "who worries about finances?" .)