Awards given for zero marks (6)
I believe the answer is:
oscars
'awards given' is the definition.
'Oscars' can be an answer for 'awards' (the Oscars are the Academy Awards). I am not certain of the 'given' bit.
'zero marks' is the wordplay.
'zero' becomes 'O' (O resembles 0).
'marks' becomes 'scars' ('scar' can be a synonym of 'mark').
'o'+'scars'='OSCARS'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for oscars that I've seen before include "Awards, for dramatic achievements" , "Hollywood annual film awards" , "Wilde's" , "Trophies" , "American Academy Awards" .)