French city scroll, illegible in part (5)
I believe the answer is:
lille
'french city' is the definition.
(Lille is a city in France)
'scroll illegible in part' is the wordplay.
'in part' indicates a hidden word.
'LILLE' is hidden in the letters of 'scroll illegible'.
(Other definitions for lille that I've seen before include "Stop before Paris" , "Feeling unwell in the French town" , "Eurostar stop" , "City of N. France" , "University city in French Flanders" .)