Across
Validate moves to incarcerate Welsh bore (9)
I haven't cracked this one yet — but Fifteensquared have:
Validate* around W{elsh}
Open form of government originally adopted from the east (4)
Disheartened marksmen receiving daily shots (8)
I haven't cracked this one yet — but Fifteensquared have:
Sni[p]ers(=marksmen) around FT(=Financial Times, a daily newspaper)
Periodically orders big guns to stand down (6)
I haven't cracked this one yet — but Fifteensquared have:
Even letters of "o r d e r s b i g g u n s"
Track fox discovered in wood (6)
I haven't cracked this one yet — but Fifteensquared have:
[F]o[x] in grove(=a small wood). "Discovered" here is used in the sense of dis-cover=remove the cover.
Journalist concludes former police constable went mad (8)
I haven't cracked this one yet — but Fifteensquared have:
Ed{itor}(=journalist) after (ex plod(=derogatory term for a police constable)). The def is used in the sense of "the situation exploded/went mad".
Associated verse about knight with Germany (6)
I haven't cracked this one yet — but Fifteensquared have:
(Line(=verse in some forms of poetry) around k{night}) + D{eutschland}
Detective's on edge meeting Henry for food (8)
I haven't cracked this one yet — but Fifteensquared have:
(DI's(=detective inspector's) + H{enry}(=abbrev for SI unit of inductance)) after side(=edge)
Writer exposed adult male stalking posh swinger (8)
I haven't cracked this one yet — but Fifteensquared have:
Pen(=writer) + (([a]dul[t] + m{ale}) around U(=posh from U/non-U))
Show embarrassment when teacher circles question mark (6)
Circus performers welcoming suggestion about dirty movie theatres (8)
I haven't cracked this one yet — but Fifteensquared have:
Fleas(=performers in a flea circus) around tip<. Dirty here is used in the sense of shabby or unclean rather than pornographic.
Squat soldier's backside fills sofa (6)
I haven't cracked this one yet — but Fifteensquared have:
[Soldie]r in couch(=sofa)
Seabird perched on a pole at rear of ship (6)
I haven't cracked this one yet — but Fifteensquared have:
Tern(=seabird) on (a S)(=south pole)
Sample mince pies oddly neglecting second one (8)
I haven't cracked this one yet — but Fifteensquared have:
(Mince p[i]es)*
Notice worries pygmies somewhat (4)
First Lady regularly on vacation in Switzerland? Absolutely! (9)
I haven't cracked this one yet — but Fifteensquared have:
Eve(=first lady in literal sense) + r[egularl]y + in + ch(=country code for Switzerland)
Down
Singer vocalising note (5)
I haven't cracked this one yet — but Fifteensquared have:
Hom of tenner(=note)
Agent turned up on hard stuff? Dismiss from office! (7)
I haven't cracked this one yet — but Fifteensquared have:
Fed<(=agent in the FBI) + rock(=hard stuff in literal sense)
Superior say taken in by tall tale (5)
I haven't cracked this one yet — but Fifteensquared have:
E.G.(=say) in lie(=tall tale)
Responds to article and promises to delete another (7)
I haven't cracked this one yet — but Fifteensquared have:
An(=indefinite article) + swe[a]rs(=promises with a, the other indefinite article, deleted)
Unionist pride is cruelly crushed by English dramatist (9)
I haven't cracked this one yet — but Fifteensquared have:
(U{nionist} pride is)* + E{nglish}. Euripides was an ancient Greek dramatist.
Flee from sailors caught on delta (7)
Silver and gold-encrusted robe daughter swapped with German invader (9)
I haven't cracked this one yet — but Fifteensquared have:
(Ag(=silver in periodic table) + or(=old term for gold)) around(=encrusted) (dress with d{aughter} swapped for G{erman})
Ladies sit awkwardly in 20s (9)
Brief affair ultimately destroyed partnership (9)
Puny rep arduously held up curtains (7)
Spooner's worked out setter is unmissable (7)
I haven't cracked this one yet — but Fifteensquared have:
Spoonerism of "sussed me"
Perfect instructor stripped most of instrument (7)
I haven't cracked this one yet — but Fifteensquared have:
[T]uto[r](=instructor) + pian[o]
Tough revolutionary essentially spewing poppycock (5)
I haven't cracked this one yet — but Fifteensquared have:
Che (Guevara) + [spe]w[ing] [popp]y[cock]
Language test is oral (5)
Type letters or click words in the clue