Put off doctor accepting summer in France (5)
I believe the answer is:
deter
'put off' is the definition.
(thesaurus)
'doctor accepting summer in france' is the wordplay.
'doctor' becomes 'dr' ('Dr' can be a synonym of 'doctor'**).
'accepting' means one lot of letters goes inside another.
'summer in france' becomes 'ete' (').
'dr' enclosing 'ete' is 'DETER'.
(Other definitions for deter that I've seen before include "Warn off" , "Discourage (an activity)" , "Daunt" , "Hinder, discourage" , "Inhibit" .)