No 13704, Monday 07 Nov 2022, Arden

Solution to 20D 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   Opportunity for half of those watching the game (8) PROSPECT {PRO}{SPECTators}

5   Go with arms, transport coming (6) ORGASM {GO+ARMS}*

10 Cashier will insult girl (7) DISMISS {DIS}{MISS}

11 Systematic plan to keep a soldier among other soldiers (7) REGIMEN {RE}{GI}{MEN}

12 Bit of war enacted in the battle ground (5) ARENA [T]

13 Stoned to death — after drink I'd embraced my girlfriend (9) LAPIDATED {LAP}{I{DATE}D}

14 Airlines gone — gone off to get these fighting men (12) LEGIONNAIRES*

18 Earlier Carol received it, I am arranging in order of importance (12) PRIORITISING {PRIOR}{SING} over {IT}{I}

21 Assure without resolving what a union member would wear (9) TROUSSEAU {ASSURE+OUT}*

23 Hog success, splitting two points (5) SWINE {S}{WIN}{E}

24 Watchdog half in a frenzy over a language (7) GUARANI {GUARdian}{IN+A}*

25 Predicament over cover of a Jane Austen novel (7) DILEMMA {LID<=}{EMMA}

26 Lay — lay half in a wrap-around cloth (6) SARONG {S{AR}ONG} Anno for AR pending (Addendum - {A{ARia}ONG} - See comments)

27 Simple, in fact starts when you enter Yale (4-4) DEWY-EYED {DE{When}{You}{En..r}{Yale}ED}

DOWN

1   Chapman's essentially idle, poppering outside (6) PEDLAR {PE{{iDLe)AR}

2   Removed only old, getting tense (6) OUSTED {O}{US{T}ED}

3   Ship exclusive for the Queen (9) PRIVATEER {PRIVATE}{ER}

4   Move on board before taking wings, it's very unrealistic to hope (6,2,3,3) CASTLE IN THE AIR {CASTLE}{IN THE AIR}

6   Very cold, fellow goes hard (5) RIGID fRIGID

7   A right age for winding (8) ARMATURE {A}{R}{MATURE}

8   Agree, one gets maximum coverage as a singer (8) MONODIST {MO{NOD}{1}ST}

9   Comes down carrying one package to surrender (4,4,6) DROP ONES BUNDLE {DROP{ONE}S}{BUNDLE}

15 Placing relatives over a friend? It's a fair game (4,5) AUNT SALLY {AUNTS}{ALLY}

16 Emergency power sources step in during eclipses (8) UPSTAGES {UP{STAGE}S}

17 Juvenile invites a Greek character-a bull headed monster (8) MINOTAUR {MINO{TAU}R}

19 Student at the centre is one month behind, it's a concern (6) DISMAY {stuDent}{IS}{MAY}

20 Signal gunners detained outside (6) ?E?A?D (Addendum - HERALD {HE{RA}LD} - See comments)

22 Well chosen country (5) SPAIN {SPA}{IN}

Reference List

Insult = DIS, Soldiers = RE, GI, MEN, Points = S,E, Only = O, Tense = T, Queen = ER, Fellow = F, Right = R, Emergency Power source = UPS, Gunners = RA(Royal Artillery), Well = SPA