Across
Sleep with love god taken from behind leading to ulcer (7)
I haven't cracked this one yet — but Fifteensquared have:
BED (sleep, as in “early to bed, early to rise”), then EROS (Greek god of love) reversed (taken from behind). UPDATE: as in the comments below, Eccles may well have intended “bed” = “sleep with”. A pressure ulcer caused by lying in the same position for long periods.
Edge around gloomy devoted worshipper (7)
Golf course in German port? (5)
I haven't cracked this one yet — but Fifteensquared have:
Definition and cryptic definition. A type of golf course generally built on sandy coastal land; or the German word for left (as opposed to right) = port in nautical terms.
Prepare to turn around one hundred baking sheets (9)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (to turn?) of PREPARE , around I + C (Roman numerals for one and a hundred). Edible paper made from rice starch, used in baking.
Trying to get flat just before bedtime? (7)
Groups crossing English river (6)
I haven't cracked this one yet — but Fifteensquared have:
GANGS (groups) containing (crossing) E (abbreviation for English). River in Asia.
Instructions for Countdown: Make sure you win! (13)
Gave in when producing Mexican plants (6)
Chorus of Desist! (7)
Mostly at sea? (9)
Slightly over medium range (5)
I haven't cracked this one yet — but Fifteensquared have:
A BIT (slightly), around M (abbreviation for medium size). Ambit = range = extent, especially the range of someone’s responsibility.
American Express can get one a South American rodent (7)
Important mission regenerating assembly line abandoned (7)
I haven't cracked this one yet — but Fifteensquared have:
Anagram (regenerating) of ASSEMB [l] Y , abandoning the L (abbreviation for line).
Down
When naked I can be supreme creator (4)
I haven't cracked this one yet — but Fifteensquared have:
Sorry, I have absolutely no idea about the wordplay for this one. Odin is a Norse creator god, and perhaps the definition should also include “supreme”, but I can’t see what else is going on. Maybe I’ll be kicking myself when someone tells me. UPDATE: Thanks to commenters – yes, it’s obvious when you see it. [i] ODIN [e] (I = the chemical symbol for this element), without the outer letters (naked). The Norse creator god.
Chlorofluorocarbon said to protect small tree (6)
Single out car from 1989/90 that's blocking Seat Ateca essentially (9)
I haven't cracked this one yet — but Fifteensquared have:
G-REG (short for G-registration: in the UK, a motor vehicle registered between August 1989 and July 1990, which had a registration plate starting with the letter G), inserted into (blocking) SEAT + middle letter (essentially) of [at] E [ca]. Segregate = to split into separate groups according to a particular characteristic (such as gender or nationality). I don’t think that’s quite the same as “single out”, which is to pick out one from a larger group.
Careless husband down with friends from the south (8)
Cockney's announced right good look at biased information (10)
I haven't cracked this one yet — but Fifteensquared have:
The sound in a Cockney accent (Cockney’s announced) of PROPER (right) + GANDER (as in “take a gander at” = slang for a look at something). I’m not sure whether we’re supposed to read it as “right good” or “good look” – the “good” isn’t really needed in either case. Information disseminated by a government or other organisation to promote its own point of view exclusively.
Everyone in fancy dance (6)
Treaty stored on phone (4)
Tempting Muslim missing first love (6)
I haven't cracked this one yet — but Fifteensquared have:
M [o] ORISH (historical term for the Muslim civilisation in North Africa and Spain) without the first O (zero = love in tennis scoring). More usually spelled “moreish”, I think; of food, tempting in the sense of making you want to eat more of it.
Stock additional tonic supply (10)
Tear up about row with a Parisian making escape (9)
I haven't cracked this one yet — but Fifteensquared have:
REND (tear = pull apart), reversed (up, in a down clue), containing (about) OAR (as a verb = row = propel a boat using oars) + UN (French, therefore Parisian, for the indefinite article “a”). Slang for run away, especially to avoid arrest.
Physical appearance of Sham 69's leader knocking out tenor (8)
I haven't cracked this one yet — but Fifteensquared have:
PRE [t] ENCE (sham), with the leading letter of S [ixty-nine] replacing the T (abbreviation for tenor). Nothing to do with the punk band from Hersham in Surrey.
Spoil home with a basin that's enclosed (6)
Snobbish hostess not typically welcoming (6)
Wonderful times eating bit of lamb fat (6)
I haven't cracked this one yet — but Fifteensquared have:
FAB (short for fabulous = wonderful) + BY (times = multiplied by, as in “3 by 2”), containing (eating) the first letter (a bit) of L [amb].
Pub on island in Italian city (4)
Tied up detective (4)
Type letters or click words in the clue