Riots featuring one Parisian and others (6)
I believe the answer is:
unrest
'riots featuring' is the definition.
I can't judge whether this defines the answer.
'one parisian and others' is the wordplay.
I cannot really see how this works, but
'one' could be 'un' (northern English dialect form of 'one') and 'un' is found within the answer.
'others' could be 'rest' (eg the rest of a group) and 'rest' is found within the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for unrest that I've seen before include "State of discontent" , "'Discontent, anxiety (6)'" , "Trouble" , "revolutionary state" , "Discontent, disturbance" .)