We didn't bid this slam, but imagine that you did on an unexciting auction.
You get the 7 of spades lead (2nd/4th)
Some info that may help you. If you cash the ace of diamonds, LHO plays the 9 and RHO the 2 (supposedly standard signals). If you lead the jack of clubs off the dummy, LHO plays low in an unconcerned fashion. If you cash four rounds of spades, RHO has 4 and LHO has 3.
Can think of nothing cunning. Win ♠K, ♦AQ hoping for four ♦ tricks. For example, if ♦J appears cash ♦T. If LHO plays ♦98 consider running ♦T. Then ♣J to ♣K, ♦K discarding a ♣, ♥A, ♠AQJ with squeeze strip chances but probably end up taking ♣ finesse