The Sunday Crossword No 3094, Sunday 05 Apr 2020

Day 12 of 21 Stay safe at home

ACROSS
1   Pieces of legacy media: limp nerd finally is getting thousands (6,5) FLOPPY DISCS {FLOPPY} {nerD}{IS}{C'S} (Addendum - FLOPPY DISKS {FLOPPY}{nerD{IS}{K'S} - See comments)
9   Berlioz finally ignored fussy sforzato, in a way (2,1,4) OF A SORT SFORzATO*
10 Box with Her Majesty somewhere on the River Dee (7) CHESTER {CHEST}{ER}
11 Depreciate how Cockney cavalryman travelled (5) ERODE {'E RODE}
12 Pacify mad clown on the rampage (4,4) CALM DOWN*
14 That satire will be undisciplined if things continue as they are (2,4,4) AT THIS RATE*
15 Last 40% of 'mercy killings': most of world's population (4) ASIA euthanASIA
17 Some impeached a persistently dull pain (4) ACHE [T]
19 ‘Cat’ anagram (anag.) is ‘act’? (5,5) MAGNA CARTA*
21 Named pup negligently; not yet investigated (8) UNMAPPED*
23 Cheat with a set of playing cards (5) TRICK [DD]
25 Singer's floral ornament (7) GARLAND [DD]
26 President that’s kind of green (7) LINCOLN [DD]
27 Word-botching and the like? (11) SPOONERISMS [CD]

DOWN
1   Florida salesman using every effort (4,3) FLAT OUT {FLA}{TOUT}
2   Old, almost stately Italian love song (1,4,3) O SOLE MIO {O}{SOLEMn}{I}{0}

3   Perhaps artisanal terrine eaten for starters? (4) PATE Acrostic Semi&lit

4   Boots out Democrats: Biden’s finally implicated (3,7) DOC MARTENS {DEMOCRATS}* over {+b..eN}
5   Hot air from 19th choice of squad? (5) STEAM {S}{TEAM} S is the 19th alphabet
6   Spaced, Ideal, Taxi, Catastrophe, Outnumbered, Miranda and Seinfeld primarily? (7) SITCOMS Acrostic [MD & GK]
7   See a guard’s job brought about level-headedly (5,2,1,5) ROBES AS A JUDGE* Never heard this phrase (Addendum - SOBER AS A JUDGE - See comments)
8   Under a dark sun, crazily strong cannabis gets you stoned (5,2,1,5) DRUNK AS A SKUNK {A+DARK+SUN}*{SKUNK}
13 Old cove coming before academic for mighty battle (10) ARMAGEDDON {AGED}<=>{ARM} {DON}
16 Everyman sent cog spinning in barroom device (3,5) ICE TONGS {I}{SENT+COG}*
18 Some member like 6, they say (7) HUMERUS (~humorous)

20 Crippling game in old America (7) RUINOUS {RU}{IN}{O}{US}
22 Greek troops not willing to participate (5) PLATO PLATOon
24 Baseless, lurid … containing this? (4) SLUR [T] Semi&lit

Reference List
Thousand = C K, Her Majesty = ER, Old = O, Italian = I, Love = 0, Cannabis = SKUNK, Cove = ARM, Game = Rugby Union = RU