Crooked, as a painting on the wall (5)
I believe the answer is:
askew
(Other definitions for askew that I've seen before include "Oblique" , "Wakes (anag)" , "Towards one side, awry" , "Wonky" , "Lopsided" .)
I believe the answer is:
askew
(Other definitions for askew that I've seen before include "Oblique" , "Wakes (anag)" , "Towards one side, awry" , "Wonky" , "Lopsided" .)