No 133451, Tuesday 11 Jan 2022, Anon

Solution to 26A 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.

Rangoli by Gowri

ACROSS

1   Attack missing regular bees at work (6) LABOUR beLABOUR

4   Delays unlikely in ship (6) STALLS {S{TALL}S}

9   Company for a hummingbird (4) INCA {INC}{A}

10 Suffering mango’s itch? Not exactly (10) STOMACHING* 

11 Stop jester partially from joking (6) BANTER {BAN}{jesTER}

12 Neglected unplanned sign oddly removed (8) UNTENDED UNinTENDED

13 Easel, awry, broken by argumentative person (3,6) SEA LAWYER*

15 Scent of a nomadic people (5) AROMA {A}{ROMA}

16 Ridicule odd group at a distance (5) SCOFF {SC}{OFF} (Correction - {SeCt}{OFF} - See comments)

18 Sieves for coach in ship (9) STRAINERS {S{TRAINER}S}

22 Suave idea born in rebellion (8) DEBONAIR*

23 Torment, be dependent on the French (6) NEEDLE {NEED}{LE}

25 Forge siren broken by people from other countries (10) FOREIGNERS*

26 Call for press on the radio (4) N?E?

27 Cook steals ornament (6) TASSEL*

28 California stores are shacks (6) CABINS {CA}{BINS}

DOWN

1   Injured eagle in race (7) LINEAGE*

2   Protecting student, flog animal (5) BEAST {BEA{S}T}

3   Detach sun-damaged unit (7) UNSCREW {SUN*}{CREW}

5   Salutes grills (6) TOASTS [DD]

6   Knight of Holy Grail, confused lone hero, initially laughs? Not quite (9) LOHENGRIN {LONE+Hero}*{GRINs}

7   Bans emu roaming to get ray of light (7) SUNBEAM*

8   Demure actions broadcast in non-fictional films (13) DOCUMENTARIES*

14 At fort, elves cook with remains (9) LEFTOVERS*

17 Revolutionary to shout for cigar (7) CHEROOT {CHE}{ROOT}

19 Memory loss confused men in continent (7) AMNESIA {A{MEN*}SIA}

20 Supplies comfort ahead of student leader (7) RELIEFS {RELIEF}{St...t}

21 Butcher, man with broken leg (6) MANGLE {MAN}{LEG*}

24 Boredom of injured nun in East Indies (5) ENNUI {E{NUN*}I}

Reference List

Ship = SS, The in French = LE, Student = S