No 13860, Tuesday 09 May 2023, Incognito

Solution to 2D 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

1   Foresee receiving gold endlessly and deliver a tirade? It can make you cough! (11) EXPECTORANT {EXPECT}{Or}{RANT}

9   Apropos one fight in the ring (5) ABOUT {A}{BOUT}

10 Fat baker's preparation for morning meal (9) BREAKFAST*

11 Saw female and male descendant hugging Earl about one around the end of June (4,4,2)  LAID EYES ON {LA{1}D{E}Y}{junE}{SON}

12 Charlie gets aged and frosty (4) COLD {C}{OLD}

13 Fish found in ocean-front route (5) TROUT [T]

15 The ones that got away from Spanish headland with key on Sunday (8) ESCAPEES {ES}{CAPE}{E}{S}

17 Time to save for any dairy preparation (5,3) RAINY DAY*

19 Old American is admitting son in spring (5) OASIS {O}{A}{IS} over {S}

22 Last of men is following first lady! Not odd? (4) EVEN {meN}<=>{EVE}

23 Simple quarrels results in people approaching courts for relief (10) PLAINTIFFS {PLAIN}{TIFFS}

26 I drag arms around carnival in New Orleans (5,4) MARDI GRAS*

27 Bank's electrical vehicle captured by general (5) LEVEE {L{EV}EE}

28 Bland celery prepared for Middle Eastern performer (5,6) BELLY DANCER*

DOWN

1   English military officer on island's bacteria (1,4) E COLI {E}{COL}{I}

2   A person getting some of the answers in this puzzle may have to behave like this with a doctor (9) P?T?E?T?Y (Addendum - PATIENTLY [CD] - See comments)

3   Wired taxi with a sort of light source (6) CABLED {CAB}{LED}

4   Oppressive emperor endlessly wearing spectacles with American marking (7) ONEROUS {O{NERo}O}{US}

5   Tutankhamen's hieroglyphic symbol (4) ANKH [T]

6   Silly owlets ate pieces of kitchen linen (3,6) TEA TOWELS*

7   On return, flier permitted solid piece of medicine (6) TABLET {BAT<=}{LET}

8   European student throwing away book composed musical pieces (6) ETUDES {E}{STUDEnt*}

14 A love-bird makes camouflage colour (5,4) OLIVE DRAB*

16 A mail on love with catholic sheltering fifty one connected to early followers of Christ (9) APOSTOLIC {A}{POST}{0}{C} over {LI}

17 I hear spacious sinuses sometimes become thus when filled with liquid (6) RHEUMY (~roomy)

18 Criminal leading headless clergy gets hay fever (7) ALLERGY {AL}{cLERGY}

20 Nurse's superb in service, having no bad habit (6) SISTER {S{1ST}ERvice}

21 Some gypsies take nap in the afternoon (6) SIESTA [T]

24 Victor's wearing wrinkled free coat (5) FEVER {FE{V}ER*} Coat/Fever?

25 Check Clinton (4) BILL [DD]

Reference List

Earl = E, Charlie = C, Spanish = ES, Key = E, Sunday = S, Old = O, American = A, Son = S, Electric vehicle = EV, General = LEE,  English = E, Military officer = COL(Colonel), Island = I, Light source = LED, Spectacles = OO, European = E, Book = NT(New Testament), Catholic = C, Fifty one = LI, Criminal = AL(Capone), Victor = V