I think the DT compiler has been too clever in 22, 1 and 20 Down. Even Danword cannot give an answer. Clue to all 4 spaces : " Publication of which damaged party - and House - regret ?
(3,3,4,6) ". The 6 letter answer is almost certainly " report" as the r-p-r- letters are definite.
The 4 letter answer is " -r-y " and the 3 letter ones are "t-e and -u- " .