A club (9) is led to the King and Ace. I think you can try:
1. Finding a singleton trump King.
2. Finding the trump King to your left and sneakily winning the 9 to discard a spade on the good club.
3. Finding the ♦K doubleton or tripleton with LHO and using the ♦Q entry to finesse the trump King doubleton with RHO.
Of course after 1 and 2 you still have to work on diamonds but there are many possibilities there. Are there any other plausible lines? Which is the best?