Quiet Parisian who put on eastern perfume (9)
I believe the answer is:
quiescent
'quiet' is the definition.
(synonyms)
'parisian who put on eastern perfume' is the wordplay.
'parisian who' becomes 'qui' ('who' in French).
'put on' says to put letters next to each other.
'eastern' becomes 'e'.
'perfume' becomes 'scent' (synonyms).
'qui'+'e'+'scent'='QUIESCENT'
(Other definitions for quiescent that I've seen before include "Dormant" , "Still" , "In an inactive state" , "Inactive -- quit scene (anag)" .)