No 13654, Wednesday 07 Sep 2022, Incognito

Solution to 19A 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

8   Stud's superior officer (4) BOSS [DD]

9   Reject kilo-calories in Big Mac concoction? Only a sorcerer or witch can do it! (5,5) BLACK MAGIC {K CAL<=} in {BIG+MAC}*

10 Love going around college after a recess (6) ALCOVE {{L{C}OVE}<=>{A}

11 Military officer gets support for walking at Spanish educational institutions (8) COLLEGES {COL}{LEG}{ES}

12 Agitates in favour of exams (8) PROTESTS {PRO}{TESTS}

14 Second mentioned type of coffee recipe (6) LATTER {LATTE}{R}

16 Enjoyable daughter's bankroll (4) FUND {FUN}{D}

17 Musical instruments in possession of Bantu bassist (5) TUBAS [T]

18 Select small photo with king (4) PICK {PIC}{K}

19 8 by 10 workspace for 22?! (6) ?T?D?O (Addendum - STUDIO {STUD}[10} - See comments)

21 Happily eyed tall building (8) ELATEDLY*

23 Careful! Around Australia, coitus is improper! (8) CAUTIOUS {C{AU}TIOUS*}

26 Hints about European Union collaborations (3-3) TIE-UPS {TI{EU}PS}

27 Hamper men getting cleaning supplies (10) DETERGENTS {DETER}{GENTS}

28 Birds in wildlife museum (4) EMUS [T]

DOWN

1   Apply lubricant wearing wrinkled bustier and coveralls in the US (6,4) BOILER SUIT {OIL} in {BUSTIER}*

2   Donkey trode violently and mixed (8) ASSORTED {ASS}{TRODE*}

3   A boy leads another boy on eastern ship to senior nun (6) ABBESS {A}{B}{B}{E}{SS}

4   In US, drug enforcement officer confines a ring leader in North Carolina (4) NARC {N{A}{Ring}C}

5   Oddly, Luke's in possession of electrical musical instruments (8) UKELELES {UKEL{ELE}S*}

6   Gift story book (6) TALENT {TALE}{NT}

7   Little Michael comes before November? (4) MIKE [DD]

13 Something rattled by belligerent person beginning to show animosity by refusing entreaties (5) SABRE Acrostic

15 Aptly cue about American type of tree (10) EUCALYPTUS {APTLY+CUE}{US}

17 Meticulous in spite of protecting officer responsible in the beginning (8) THOROUGH {TH{Of...r}{Re...e}OUGH}

18 Comes before decree is misrepresented in police station (8) PRECEDES {P{DECREE*}S}

20 Badly suited for responsibilities (6) DUTIES*

22 Creative person and revolutionary satirist is missing (6) ARTIST SATIRisT*

24 Partly decadent country (4) ADEN [T] Country or City?

25 Fiery object in sky in front of king drowned (4) SUNK {SUN}{K}

Reference List

Kilo-calories = KCAL, College = C, Spanishb = ES, Recipe = R, Daughter = D, King = K, Australia = AU, European Union = EU, Boy = B, Ship = SS, Electrical = ELE, Book = NT(New Testament), Police station = PS