Will being violent once here wound? Very upset on the surface (6)
I believe the answer is:
oscars
'will being violent once here' is the definition.
(reference to Will Smith)
'wound? very upset on the surface' is the wordplay.
'wound?' becomes 'scar' (I've seen this before).
'very' becomes 'so' (both can mean 'extremely').
'upset' says the letters should be written backwards.
'on the surface' indicates putting letters inside (some letters go on the outside of others).
'so' back-to-front is 'os'.
'scar' going within 'os' is 'OSCARS'.
(Other definitions for oscars that I've seen before include "American Academy Awards" , "Trophies" , "Movie awards" , "American film Awards" , "annual handouts" .)