Discretion, tact (8)
I believe the answer is:
delicacy
I believe this clue is a double definition.
'discretion' is the first definition.
(I know that discretion can be written as delicacy)
'tact' is the second definition.
(I know that delicacy is a type of tact)
(Other definitions for delicacy that I've seen before include "Weakness" , "Sweetmeat" , "Choice item of food" , "chef's special?" , "Tact - tasty food" .)