Across
Powder room makes sleepyhead somehow appear dishevelled (4,1,4)
Essential sign in heart oddly ignored (5)
I haven't cracked this one yet — but Fifteensquared have:
Even letters (‘oddly ignored’) of ‘s I g N i N h E a R t’.
Pound discovered in a bath robe (5)
Helen and Ruth unclothed by champion of alternative medicine (9)
I haven't cracked this one yet — but Fifteensquared have:
A charade of ‘[H]ele[n]’ plus ‘[R]ut[h]’, both minus their outer letters (‘unclothed’) plus HERO (‘champion’), for a plant, Siberian ginseng, used as an ‘alternative medicine’.
Turbulent river in Europe, as far as the Guardian is concerned (7)
Clothes on fire? (7)
I haven't cracked this one yet — but Fifteensquared have:
Punning definition.
Live or die, that's come out nicely (5)
A city in Tanganyika, doesn't matter which (3)
Portsmouth & Co (5)
I haven't cracked this one yet — but Fifteensquared have:
The port of Rome;and the plural (‘& Co’) of OSTIUM a ‘mouth’. The S could be “is”.
East German in mature comeback (7)
Terribly quaint and ultimately obsolete (7)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (”terribly’) of ‘quaint’ plus E (‘ultimately obsolet E ‘), wuth an &lit definition.
16d
Is it best to have laid out a stall that's disgusting? (4,5)
The hapless are to speak (5)
One's art without frames, extremely versatile and daring (5)
Writer's book contains clever mixed metaphors (3,6)
Down
Boodle's mark (4)
I haven't cracked this one yet — but Fifteensquared have:
A charade of ‘b’- plus LOT (-‘oodle’).
Nice day, on reflection, for correspondent (6)
Brambles not right as an environment for raising wildlife and fools (10)
I haven't cracked this one yet — but Fifteensquared have:
An envelope (‘as an environment for’) of OOZ, a reversal (‘raising’ in a down light) of ZOO (‘wildlife’) in ‘b[r]ambles’ minus the R (‘not right’).
Religious people gathering shells, essentially as ornaments (6)
Group competently curbs rising disorder (8)
Being old, will droop (4)
I haven't cracked this one yet — but Fifteensquared have:
An archaic form (‘being old’) of ‘will’, second person singular.
Dine out on little money? That's vulgar (8)
Working majority of 13 across or 3 (4)
I haven't cracked this one yet — but Fifteensquared have:
An anagram (‘working’) of a ‘majority’ (just) of RIOT[ous] (’13 across’).
Up or down detector (5)
I haven't cracked this one yet — but Fifteensquared have:
A palindrome (‘up or down’).
Perhaps too bad a mark (10)
See 24
Showing Europe's upset about vote (8)
Enough said, every now and then, on match (8)
In the Mao revolution (2,4)
Source of stone that is sought by hunters (6)
No portrait of elaborate lap dances (9)
They say thin is right (4)
Brew beer, only half jug (4)
Type letters or click words in the clue