1a) careless friends returning have a hurry (8) ?L???A??
17a) Pass American party speech on working together (13) ?O?L???R?L?S?
20a) Study hint about Germany and make inferences (8) ?O?C?R?E
23a) Give details of French writer (8) S?S?????
12d) Come back with a new cover (7) R?T?R?S