Discussed current plan (5)
I believe the answer is:
draft
'plan' is the definition.
(drafting is a kind of planning)
'discussed current' is the wordplay.
'discussed' indicates a 'sounds like' (homophone) clue.
'current' becomes 'draught' (a draught is a current of air).
'draught' is a homophone of 'DRAFT'.
(Other definitions for draft that I've seen before include "Rough drawing" , "Bank payment order" , "sketch, perhaps" , "Preliminary drawing" , "book's outline" .)