18 Down " Remarkably, Conservative initially isn't attending latest party. " Answer: 'social'.
I can see " c = Conservative , followed by first letters 'c i a l ' . Is 'so ' really 'remarkable' ?...
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) "....
25 Down : Said case of spirits to be missing. Answer " oral" . All very obviously "said" but ' case of spirits' which often means ' s,s ' seems irrelevant ?...
1 Down " Singular P&O leaders in new squabble over retirement fund " . Answer " sponsor". I can only see 'p' and 'o' - no idea of where the squabble and the fund is. It seems we shall reach no. 30,000...
18 Across " Winning group staying in tune ". Answer " prepossessing" which is OK for 'winning' but where's the group and key ? 28 Across " Rejected in street, a renegade's cause " Answer " generate" -...
27 Across : " Yes ! Trick entertains us, good day for object of schoolboy humour " Answer : whoopee cushion " . I guessed the answer from some of the letters bu cannot see any connection with the clue...
24 Down " Fascination over Dick Grayson's relationship to Bruce Wayne. " Answer " ward " .
I get the Batman allusion but where does " fascination " come in ?...
14 Across " Convinced Parisian he holds a secret " . Answer " confidential" . Apart from "secret", I can see no connection with the rest of the clue ?...
18 Across Some upset eating East European dishes . Answer " omelettes " . Some upset is "omes" round either "lette" or "elett" . I can't find a European national called either of those....
25 Across : Advancing copyright in designs produces these responses.
Answer : reactions. I can see 'a' and 'c' for advancing copyright but where are the ' designs ' ?...
11 Across Do go on about Queen favourite. Answer " perpertrate " .
Can't see relevance of much of this answer . Where is "favourite" ? "perpetuate" might be "go on" and "pet" is a favourite ....
15 Across : " Hole in the wall ? Collect stake money on the way back. (4) Answer "loop".
Stake money is "pool" but have no idea about "hole in the wall"...
7 Down : Astute keeping with previous word-processing technique ?
Answer : Cut and paste .
Can see the letters of " astute" in there but not the rest ....