Across
Onward keeping United just out of the medals (6)
I haven't cracked this one yet — but Fifteensquared have:
FORTH (onward) containing (keeping) U (United)
Half of best silver ultimately lost around grandma's flat (8)
I haven't cracked this one yet — but Fifteensquared have:
( ST [ second two of the four {half} letters in be ST ]) + ( AG [chemical symbol for silver] + T [ final letter of {ultimately} los T ]) containing (around) NAN (grandma)
Shape up with sore back in Pakistani city (8)
Genteel date isn't ending in intimacy (6)
I haven't cracked this one yet — but Fifteensquared have:
D (date) + AIN’T (informal contraction of is not [isn’t]) + Y ( last letter of [ending in] intimac Y )
Soldiers on horseback annoyed when liberal advanced Christian symbol (12)
I haven't cracked this one yet — but Fifteensquared have:
CAVA L RY (soldiers on horseback) with the letter L (Liberal) advanced in the word to form CA L VARY ) + CROSS (annoyed)
Is going to old women to get wood (6)
I haven't cracked this one yet — but Fifteensquared have:
WILL (is going to) + O + W (women)
Host on one leg (6)
Actor toeing the line to stop moral posturing (12)
Muralitharan for example elbow bent essentially mesmerising (6)
Perhaps fear and loathing of computer stools? (8)
Novel battery contains single metal oxide (8)
I haven't cracked this one yet — but Fifteensquared have:
Anagram of (novel) BATTERY containing (contains) I (Roman numeral for one; single)
Crowning glory of American health insurance programme heartlessly rejected (6)
Down
Closest competitor losing heart about records (8)
Exhibitionist in waterfall? (6)
I haven't cracked this one yet — but Fifteensquared have:
SHOWER (a fall of water; waterfall) double definition (both fairly cryptic)
Chinese entertaining food from Japan (8)
Becomes a zombie? That's pants (6)
Time to be introduced to one measuring spirit of musical drama (8)
Naked African runner tense and harsh (6)
Meet once about revealing communication (4)
I haven't cracked this one yet — but Fifteensquared have:
NOTE ( reversed [about] hidden word in [revealing] me ET ON ce)
Contract ends once broken (8)
A gown to wear at hospital may be kept here (8)
Importance of Italian desserts salesman finally yielding to Victor (8)
I haven't cracked this one yet — but Fifteensquared have:
GRA N ITAS (Italian desserts made of grainy-textured flavoured water ice) with N ( last letter of [finally] salesmaN) being replaced by [yielding to] V (Victor is the international radio communication code for the letter V )
Italian city is more up-to-date some might say (6)
Fungal growth is not serious we recalled (6)
Very keen to have kids switches sides (6)
I haven't cracked this one yet — but Fifteensquared have:
B R OODY (of a woman, wanting to have babies [kids]) with the R (right side) changed to L [left side] – changing sides)
In hiding run away from home (4)
Type letters or click words in the clue