Across
6a
(and 6 Across) George’s scheme involving one chasing car (9,5)
See 1 Across
Plane diverted somewhere in Asia (5)
Sacking every good person, rock station put off everybody (3,3,3)
I haven't cracked this one yet — but Fifteensquared have:
[St]one(=rock) + [st]and(=station) + [st]all(=put off) (all words with S{ain}t(=good person) removed)
Flowing waters engulf men with one going missing (8)
I haven't cracked this one yet — but Fifteensquared have:
Seas(=waters) around m[a]les
Exaggerate malfunction (4,2)
I haven't cracked this one yet — but Fifteensquared have:
DD
Luvvie going over to embrace with smoochy sound (4)
I haven't cracked this one yet — but Fifteensquared have:
Ham<(=luvvie i.e. an actor) around w{ith}
Joanna (my Mum’s mum) paid for renovation? Over my dead body! (5,5)
I haven't cracked this one yet — but Fifteensquared have:
Gran(=my Mum's mum) + paid* + no(=over my dead body!)
Struggling, naked, are we born again? (10)
Rum, say, is licensed exclusively at first (4)
I haven't cracked this one yet — but Fifteensquared have:
Is + l[icensed] e[xclusively]. Rum (properly Rùm) is an island in the Inner Hebrides.
Announce sailor from the East’s election (6)
I haven't cracked this one yet — but Fifteensquared have:
(Toll(=announce with a bell) + ab{le seaman))<
Wing, maybe pro-British, inspiring return of imperial measurement (8)
I haven't cracked this one yet — but Fifteensquared have:
For B(=pro-B{ritish}) around mile<
Transcends right and wrong reversing sign of aging (5,4)
I haven't cracked this one yet — but Fifteensquared have:
(Tops(=transcends) r{ight} evil(=wrong))<
Friend from Potsdam I googled (5)
29a
(and 29 Across) Political skullduggery as small business replaced MP’s car again (5,9)
See 28 Across
Down
14d
(and 14 Down) Mass burial twice in awfully catastrophic year (5,9)
Big cheese beat restriction, having discovered tax not applicable (3,6)
I haven't cracked this one yet — but Fifteensquared have:
Top(=beat) + ban(=restriction) + [t]a[x](=tax dis-covered) + n{ot} a{pplicable}(common abbrev used in forms etc)
Mankini looked “lovely” on vacation - euphemistic to put it thus (6)
I haven't cracked this one yet — but Fifteensquared have:
M[ankin]i l[ooke]d l[ovel]y
Unusual result, ergo, put a pin in it (7,3)
Ruminate about shape (4)
I haven't cracked this one yet — but Fifteensquared have:
C{irca}(=about) + hew(=shape e.g. with an axe)
Run off after writer - she waited a long time (8)
I haven't cracked this one yet — but Fifteensquared have:
Elope(=run off) after pen(=writer). The def refers to Penelope, wife of Odysseus, who awaits his return from the Trojan War.
Green field fairly empty (5)
I haven't cracked this one yet — but Fifteensquared have:
Lea(=field) + f[airl]y
24d
(and 24 Down) Directories help one to be organised, fair and ultimately scrupulous (9,5)
Failing to meet man right before death (4,6)
I haven't cracked this one yet — but Fifteensquared have:
(To meet man r{ight})*
See 1 Down
Aisling Bea briefly floundering - way to let people down! (9)
I haven't cracked this one yet — but Fifteensquared have:
(Aisling Be[a])*. Aisling Bea is an Irish comedian.
Navvy’s dog more sullen when daughter's not around (8)
I haven't cracked this one yet — but Fifteensquared have:
Lab{rador}(=dog) + [d]ourer(=more sullen minus d{aughter})
State in North America welcoming drummer Grohl turning up (6)
I haven't cracked this one yet — but Fifteensquared have:
N{orth} A{merica} around Dave<(=Grohl, referring to the musician from the bands Nirvana and Foo Fighters )
US bank oddly lied to recruit First Lady (5)
I haven't cracked this one yet — but Fifteensquared have:
Odd letters of l i e d around Eve(=First Lady in biblical sense). The bank here refers to the dykes used in the US to hold back flooding (which famously failed in New Orleans when Hurricane Katrina struck).
See 8 Down
Very impressive bit of extreme picnicking (4)
Type letters or click words in the clue