No 13309, Monday 26 Jul 2021, Bruno

Solution to 23A has been deliberately left unsolved and is to be answered only by a non-regular / novice commenter, with proper annotation. Those who have answered earlier in the week, please give others a chance.

ACROSS

7   High-speed show’s a failure (8) GIGAFLOP {GIG}{A}{FLOP}

9   Change hands during dismount correctly (6) ARIGHT A(-l+r)RIGHT

10 Emperor’s final letter found in coach (4) TZAR {T{Z}AR} Tar/Coach? (Addendum - CZAR {C{Z}AR{ - See comments)

11 Group that supports women wears rose dhotis (10) SISTERHOOD*

12 Fat man inwardly turning around for support (6) BEHALF {FLA{HE}B}<=

14 Rain and smog affected every single living thing (8) ORGANISM*

15 Must beards be trimmed often over mouth to be a useful accessory? (13) SHOULDERSTRAP {SHOULD}{bEaRdS}{TRAP}

17 European noodle variant essentially causes great well-being (8) EUPHORIA {EU}{PHO}{vaRIAnt}

19 Taking a couple of layers off — heard amour can find passion (6) ARDOUR {heARD}{amOUR}

21 Film on King’s fine new weapon (5,5) FLICK KNIFE {FLICK}{K}{FINE*}

22 Skip meals and pass away over time (4) DIET {DIE}{T}

23 Second gentleman takes hand — pirouettes for dance (6) ?O?R?S (Addendum - MORRIS {MO}{SI{R}R<=} - See comments)

24 Make English bank lose pounds (8) ENGENDER {ENG}{lENDER}

DOWN

1   Zinfandel lacking body bottled in mass makes hissing sound (6) SIZZLE {SIZ{Zi...eL}E}

2   Light//show? (4) FAIR [DD]

3   Satisfied subs fill dugout (8) BLISSFUL*

4   Horse ordered to lead black sheep (3,3) BAD EGG {GG}<=>{BADE}

5   EU marine facilities task-force starts releasing thermodiffusing plastic that can be used to catch food (7,3) FISHING ROD tHeRmODIFfuSING*

6   After opening session, member of parliament makes noise, gets raise and takes drugs (6,2) SHOOTS UP {Se...n}{HOOTS}{UP}

8   Recovering mailman? (13) POSTOPERATIVE {POST OPERATIVE}

13 Drug dealer has 3 drugs in a car at the end of driveway (10) APOTHECARY  {A}{POT}{H}{E}{CAR}{d...aY}

15 Kitchen worker’s turn to take out second layer in onion (8) SCULLERY  Anno pending (Addendum - SCULLION SC(-a+u)ULLION - See comments)

16 Wise to control speed these days? (5,3) SPACE AGE {S{PACE}AGE}

18 Dissolute artist’s drunk kiss? (6) RAKISH {RA}{KISH}(~kiss)

20 Messaging system seen hacked in Utah (6) USENET {U{SEEN*}T}

22 Study at the end of lobby has counter (4) DENY {DEN}{l..bY}

Reference List

King = K, Time = T, Second = MO, Hand = R, Pounds = L, Horse = GG, Drugs = POT, H, E, Artist = RA