Current plan to conceal bungled arrest (9)
I believe the answer is:
airstream
'current' is the definition.
(a current of air)
'plan to conceal bungled arrest' is the wordplay.
'plan' becomes 'aim' (aiming is a kind of planning).
'to conceal' indicates putting letters inside.
'bungled' is an anagram indicator.
'arrest' with letters rearranged gives 'rstrea'.
'aim' placed around 'rstrea' is 'AIRSTREAM'.
(Other definitions for airstream that I've seen before include "blow" , "Atmospheric current" , "wash" , "Jet" , "Wind at high altitude" .)