8d) Old, sad Italian city losing heart (6) ?R?S?E - not sure about the 'R'
15d) Pest concealed under a poppy's head (5) A????
16d) Intuitive feeling about a joint (6)
18d) Note cross in what's left after decanting messages (7) ??L????
19a) Absolute quack (11) ??Q???I????
All help greatly appreciated.