Dm 14927 Please Answer And Explain!!!

[Gavmacp]

2d. Choir tries to incorporate upcoming musical group (4) ?R?O
5d. Old man's tense? Yes, tense (4). ?A?T
23d. Move slowly and carefully in Switzerland (4). I?C?
Cannot get the next one
22a. In the new USSR writer's sharp witted (8). answer incisive

[samthetam]

23d in CH

[mallyh]

2d trio
5d taut
23 in ch

[ladyalex]

5d Past. Pa's t(ense) and Past Tense....I'd guess

[sandyRoe]

2 trio. backwards in clue

[janbee]

past

[SirOracle]

2 trio

[janbee]

trio

[mazie]

2d Trio (backwards in the clue)

[mallyh]

ch =switzeland

[BlackadderV]

Trio in clue backwards
Pa'st (tense)
In CH(switzerland
In CIS (new name of USSR) I've

[samthetam]

2d trio chOIR Tties

[Gavmacp]

Thank you!

[MargoTester]

Trio reversed in clue
Past pa's(t)
Inch in ch(Switzerland)
Yes incisive

[ladyalex]

2d trio chOIR Tries to incorporate.....

[BlackadderV]

Actually Confederation of Independent States is the new name for the old Russian Federative republic so is not really a new name for the USSR as such.

[dannyk13]

2d.Trio (letters reversed in clue)
5d.Past - pa's(old man's) + t(tense)
23d.Inch - in + ch(abbreviation for Switzerland)
22a.Incisive - in+ cis(New abbreviation for Russia) +ive