Declarer opened 1♠ and rebid 2♥, and your example to justify your lead is a 20 count with three hearts, and even then I don't see how a club lead is setting him. Come on Halo. Well, I might bid 2H with that hand, and how weak do you think declarer is for his 3NT bid (if he is not just boringly going several off whatever we play.) But OK we make the hand: AKQxx, AKJx, x, K9x and not unreasonably give dummy the diamond KQ and a small doubleton spade. Do you not feel in danger after a heart lead jdonn?