At the table I would play (as my opponent did) for the to split. You’re cold for 12 if they do. All other plans don’t seem to get to 67.8%.

Now lead the 7. Assuming West goes up with the K, he must return a heart (to Q, then win AKQ), or club (to clubs). If he does not go up, you go up with the Q and win the clubs, yielding the final trick.

I guess this is sort of a dentist coup (extracting the spades from W’s hand so he must exit to give you the entry on board you need)? Not sure this is the line that I’d take at the table, but it seems to be a pretty high percentage line if you know West only has 2 spades for any reason (just requires K onside, so 50-50 at least).