Public calling for plan (7)
I believe the answer is:
outline
'for plan' is the definition.
(outlining is a kind of planning)
'public calling' is the wordplay.
'public' becomes 'out' (out can mean released to the public).
'calling' becomes 'line' (I've seen this in another clue).
'out'+'line'='OUTLINE'
(Other definitions for outline that I've seen before include "(Make a) sketch" , "Sketch, skeleton" , "route" , "Undetailed plan" , "Preliminary draft" .)