Avoid quiet one in Paris (4)
I believe the answer is:
shun
'avoid' is the definition.
(I know that shun is a type of avoid)
'quiet one in paris' is the wordplay.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'one in paris' becomes 'un' ('one' in French).
'sh'+'un'='SHUN'
(Other definitions for shun that I've seen before include "Keep away from, have nothint to do with" , "Ostracise" , "attention in the army" , "'Eschew, avoid (4)'" , "military command" .)