Current art is designed on paper (9)
I believe the answer is:
airstream
'current' is the definition.
(a current of air)
'art is designed on paper' is the wordplay.
'designed' indicates an anagram (designed with the letters).
'on' says to put letters next to each other.
'paper' becomes 'ream' (a ream is an amount of paper).
'art'+'is'='artis'
'artis' anagrammed gives 'airst'.
'airst'+'ream'='AIRSTREAM'
(Other definitions for airstream that I've seen before include "Jet" , "Atmospheric flow" , "Wind at high altitude" , "wash" , "blow" .)