The Sunday Crossword No 3115, Sunday 06 Sep 2020

ACROSS
1   Catching cold, remedy imediately (2,4) AT ONCE {ATON{C}E}
4   Delivery with keeper initially missing, run yielded, cricket's shameful, concerning (1-7) C-SECTION {CrICkETS}*{ON}
9   To the point that peacekeepers fired back (5) UNTIL {UN}{LIT<=}
10 Whupping good, replacing starter, moving fast (9) GALLOPING (-w+g)GALLOPING
11 German philosopher, no-good rotter (4) HEEL HEgEL
12 Hint describing piece of language? (4) CLUE {C{La...e}UE} &lit
13 Break in Adriatic city (5) SPLIT [DD]
14 Primarily, big English opus wherein Unferð loses face? (7) BEOWULF Acrostic &lit
16 Clothing essential at golf course (4) TEES [DD]
17 Maid of honour eating words at wedding (1,2) I DO [T]
20 Painful condition overwhelming one bird (4) IBIS {IB{1}S}

21 Some frown at a shampoo being depicted in War and Peace (7) NATASHA [T]
24 Window concealed by signori elusively (5) ORIEL [T]

25 Being overheard, piped down (4) BLUE  (~blew}
26 German philosopher's hypocrisy called out (4) KANT (~cant)
28 Denied visa, we'd do in resort (9) DISAVOWED*
29 Dice with 1, 8, 27, 64, 125, 216 (5) CUBES [DD]
30 Servant comes before some French king, wanting support (4,4) HELP DESK {HELP}{DES}{K}
31 Type of tennis shot: very weak-spirited, coming up short (6) VOLLEY {V}{YELLOw<+}

DOWN
1   Going round Dubai? Bah! It's along the coast (3,5) ABU DHABI*
2   May, perhaps: leader deposed by party taken in by exotic creature? Exactly (2,3,3) ON THE DOT {mONTH}{E{DO}T}
3   Left, in bed, a little horse (4) COLT {CO{L}T}
5   Devil turns ego fluently – being this? (6-7) SILVER-TONGUED* Semi&lit
6   Gloats over achievement loudly, part of old Boat Race (5,4) CROWS FEET {CROWS}{FEET}(~feat) Cockney rhyming slang Boat Race/Face
7   Twice I see in France the frosty figure (6) ICICLE {IC}{IC}{LE}
8   Deny most of teenage mucking about (6) NEGATE TEENAGe*
10 Good angle, taking in ancient game where all can see (8,5) GOLDFISH BOWLS {G}{OLD}{FISH}{BOWLS}
15 Not popular with crackers, Devon Blue (9) UNBELOVED*
18 I almost tolerate most of nonsense somewhere in Turkey (8) ISTANBUL {I}{STANd}{BULl}
19 Alas, today's as dismal (3,2,3) SAD TO SAY*
22 Fuss when two of hearts switched for diamonds with gizmo (6) DOODAH {(-h+d)DOO(-h+d)DAH}
23 Rudolf, the German behind something energising locomotives to begin with? (6) DIESEL {DIE}{So...g}{En...g}{Lo...e} Semi&lit
27 Copy of doohickey regularly backfiring (4) ECHO {dOoHiCkEy}<=

Reference List
Cold = C, Run = R, Good = G, King = K, Very = V, Party = DO, Left = L, The in French = LE, Hearts = H, Diamonds = D, The in Germn = DIE