Stuck on a few this week. These should help me complete:
1d Vote for possible action at end of poker betting (4,2,5) R?O? / O? /H???S
23a Weapon used in retreat: this escape most lucky (9) ??R?O?E?T
40a Take us on a tour in mediaeval music (9) C?N?U?T?S
32d Blackmail to stay with children's author for speech (4,2,6) ?O?? /?O / ???S??