Goon’s initial cover, without question, doing for criminal attribute (5)
I believe the answer is:
Here is my best explanation:
'criminal attribute' is the definition.
'goon's initial cover without question' is the wordplay.
'goon's initial' becomes 'gu' (I can't justify this - if you can you should believe this answer much more).
'cover' becomes 'quilt'.
'without' is a deletion indicator.
'question' becomes 'qu'.
'quilt' with 'qu' taken away is 'ilt'.
'doing for' acts as a link.
(Other definitions for guilt that I've seen before include "uncomfortable feeling", "Feeling of culpability", "Remorse, feeling responsible for an offence or action", "Sin", "(Shame from) having done wrong", "Responsibility for criminal offence", "Bad conscience", "Culpability", "Criminality" and "State of having committed offence".)