Opening paint-roller, removing wrapping (5)
I believe the answer is:
intro
'opening' is the definition.
(short for introduction)
'paint-roller removing wrapping' is the wordplay.
'wrapping' indicates the answer is hidden within the clue.
'INTRO' is hidden in the letters of 'paint roller removing'.
(Other definitions for intro that I've seen before include "One starts" , "Opener" , "First notes" , "First bars of a piece of popular music" , "Beginning (colloq.)" .)