Across
Archetypal bachelor pressed by heartless adversary on show (10)
I haven't cracked this one yet — but Fifteensquared have:
(B{achelor} in ri[v]al) on prove(=show)
Join main motorway (4)
Terribly posh area besieged by disorderly rabble entering city (10)
I haven't cracked this one yet — but Fifteensquared have:
U(=posh from U/non-U) + ((a{rea} in rabble*) in N{ew} Y{ork})
Jay bird's prominent feature (4)
I haven't cracked this one yet — but Fifteensquared have:
J(=jay, a word sometimes used to refer to the letter) + owl(=bird).
Representative keeps fighting with sponsor (12)
Playful creature finally brought teacher back for coffee (9)
I haven't cracked this one yet — but Fifteensquared have:
(Otter(=playful creature) + [brough]t + sir(=teacher))<
One pursuing Grand Knight with iron weapon (5)
I haven't cracked this one yet — but Fifteensquared have:
(I after (g{rand} N(=knight in chess)) + Fe(=iron in periodic table)
Throw out scientist's conclusion after artifice is discovered (5)
I haven't cracked this one yet — but Fifteensquared have:
[Scientis]t after [d]evic[e](=dis-covered artifice)
Enrage four couples when speaking out? (9)
I haven't cracked this one yet — but Fifteensquared have:
Hom of incense eight(=four couples)
Foolishly forget Idaho contains hospital providing cure for alcoholics? (12)
I haven't cracked this one yet — but Fifteensquared have:
(Forget Idaho)* around h{ospital}. The question mark is required for the def because it's not a cure many professionals in the field would recommend.
Hotelier picked up court orders (4)
I haven't cracked this one yet — but Fifteensquared have:
Hom of writs
Creator of institution admits liberal journalist struggled (10)
I haven't cracked this one yet — but Fifteensquared have:
(Founder(=creator of institution) around l{iberal}) + ed{itor}
Howl about disappearing trick (4)
I haven't cracked this one yet — but Fifteensquared have:
Sc[re]am. Re(=about) removed(=disappearing).
Perennial problem keeps retired secretary and doctor working (10)
I haven't cracked this one yet — but Fifteensquared have:
(Snag around (PA<(=personal assistant) + d{octo}r)) + on(=working, as in "the computer is on")
Down
Regularly applying product gives you seductive look (4)
I haven't cracked this one yet — but Fifteensquared have:
Odd letters of p r o d u c t
Balls-up in Middlesbrough! (4)
Chagrin of former primate maintaining small allotment (12)
I haven't cracked this one yet — but Fifteensquared have:
((Ex(=former) + ape(=primate)) around s{mall}) + ration(=allotment)
Empty pool bordering lake (5)
I haven't cracked this one yet — but Fifteensquared have:
Bank(=pool) around l{ake}. I think the meaning of bank here is in games where a player draws from a reserve (or pool) of cards or pieces which is called the bank.
American is catching on following everybody's hints (9)
I haven't cracked this one yet — but Fifteensquared have:
((US(=American) + is) around(=catching) on)) after all(=everybody)
Self-important GI locates bombs planted around island (10)
I haven't cracked this one yet — but Fifteensquared have:
(GI locates)* around i{sland}
Physician broken by stay in A&E feigned illness (10)
I haven't cracked this one yet — but Fifteensquared have:
MD(=physician, short for Doctor of Medicine) around (linger(=stay) in A & E)
Classification code originally adopted by old Beijing religious community (12)
I haven't cracked this one yet — but Fifteensquared have:
(C[ode] in Peking(=old name of Beijing)) + order(=religious community e.g. an order of monks)
Rookies putting location before brass (10)
I haven't cracked this one yet — but Fifteensquared have:
Green(=location, as in "village green") + horns(=brass instruments)
Like Pepys essentially diarist cultivated houseplant (10)
I haven't cracked this one yet — but Fifteensquared have:
As(=like) + [Pe]p[ys] + diarist*
Hearing about hollow triumph over Norway in competition (9)
I haven't cracked this one yet — but Fifteensquared have:
(Trial(=hearing) around t[riump]h) + o{ver} + N{orway}
Supply Ecstasy and crack (5)
Revolutionary outfit show off (4)
God of childhood innocence (4)
Type letters or click words in the clue