After you open 1♦, jump shift to 3♣ and later cuebid spades after partner gives you a delayed diamond preference, you wind up in 6♦.
West leads a trump. You win the queen, cash the ♣A and ruff a club, return to your hand with the ♠A and draw trumps (which are 3–3), discarding two hearts from dummy. Plan your play from here, allowing for 5–2 clubs.
West leads the ♦7, East playing the 9. Plan the play. Clubs are not 4–0.