♠AJ
♥AQ4
♦AJT987xx
♣---
Your RHO passes as dealer and you...
Let's suppose you opened 2♣ (you can explain why it's not a good choice), LHO bids 5♣ (natural) and your partner bids 6♣. You have no agreement on this sequence with partner (who does? You can explain what you think it should be though) and RHO passes, what's your bid?
For another take on the same hand: