Current calculation included in report (7)
I believe the answer is:
account
'report' is the definition.
(I know that report can be written as account)
'current calculation' is the wordplay.
'current' becomes 'ac' (alternating current).
'calculation' becomes 'count' (I can't explain this - if you can you should believe this answer much more).
'ac'+'count'='ACCOUNT'
'included in' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for account that I've seen before include "Financial record; narrative" , "Charge" , "Narrative or invoice" , "Tell" , "Financial statement" .)