Display of balance — something pronounced on slope? (4,9)
I believe the answer is:
bank statement
'display of balance' is the definition.
'something pronounced on slope?' is the wordplay.
I cannot really see how this works, but
'slope?' could be 'bank' (bank is a kind of slope) and 'bank' is present in the answer.
The remaining letters 'statement' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
(Other definitions for bank statement that I've seen before include "Printed facts and figures" , "Record of financial transactions" , "note of available funds" , "showing an indication of interest?" , "Listing for balance" .)