17a Turn to drink and sex to relieve yourself (4)
I have ?I??
19a Single-minded politician Tom say, caught in the act (9)
I have D?D???P?D
(No word seems to fit so this may be wrong).
18d Southern political leader wants new title - hawk to produce it (7)
I have ??I?T?E
A few more to do but I will leave it at this for now. Help appreciated - perhaps just a further clue will do, as it's early days.