Stuck with some clues.
19a. Incriminate (3,2) letters. F?T ?P
(I thought answer was Set Up), but my F comes from Contamination which I put down Infection. (6d (9) letters. I??ECTION
78s. Give it a try (3,4,2) Letters.
R?N ?IT? ?T ( I have put Run with It. ??