... even commits to stop crime, that’s noble (7)
I believe the answer is:
vicomte
'noble' is the definition.
(I've seen this before)
'even commits to stop crime' is the wordplay.
'even' means one should take alternating letters (even-numbered letters are used).
'to stop' is an insertion indicator.
'crime' becomes 'vice' (vice crime is a kind of crime).
The alternating letters of 'commits' are 'omt'.
'omt' put within 'vice' is 'VICOMTE'.
'that's' acts as a link.
(Other definitions for vicomte that I've seen before include "Foreign nobleman" , "French nobleman" , "Noble" .)