Concealed intentions (6,6)
I believe the answer is:
hidden agenda
'concealed intentions' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for hidden agenda that I've seen before include "Secret motive behind one's actions" , "followed in secret meeting?" , "Concealed intentions" , "Undisclosed reason" , "that could delay the meeting?" .)