This is a jigsaw puzzle cryptic crossword: the clues are listed in alphabetical order of answer. Answers are fitted into the grid to produce a valid crossword solution. No squares contain more than one letter, and (I'm pretty certain) there is only one solution.
Bat-bishop raging that his is a clerical office (9) Lots, less a million, is still some (3) HRH may tic violently, being 'irregular' (9) Found in galleries in Montmartre (3) Spectacles located, surrounded by US crap (4) Toilets disappointing American, not for everyone (4) Black suit's not special, it's a gentleman's escape! (4) Shakily depict one means of misleading (9) Mother of virgin makes suspenseful threat of imminent calamity (9) Anglo-Saxon slave taken by thane's nephew (4) Exclamation of sudden joy is a yes in part (1,3) Legislative antechamber is tense, campaigner (8) Endless march for fruit? Refuse! (4) Mother's one who's passed the Turing test in African language (5) Obscure off-target homonym (4) Unearthed fossil was once German (4) Quiet drunk is pretentiously luxuriant (5) Skirt banks of Roma and Riviera (2-2) Two-thirds of a slice of bacon? That's thoughtless (4) Bootless, missing toes, fallen over — he's disgusting (4) Surreptitious kill if assassin's first inside (3) First tasteless answer adds colour (4) The appointed officer leads the way (3) String the trees at regular intervals, leaving no slack (8) Cruder than crude, lacking maps (9) Man follows security organisation plot (it's not laid out) (9)