Disclose, divulge (6)
I believe the answer is:
reveal
I believe this is a double definition.
'disclose' is the first definition.
(I know that disclose can be written as reveal)
'divulge' is the second definition.
(I know that divulge can be written as reveal)
(Other definitions for reveal that I've seen before include "'Make known, disclose (6)'" , "Leak" , "Make known to others" , "Disclose or uncover" , "Make public" .)