You land in 6S and receive the ♦K lead. Not a particularly interesting hand at IMPs, but it seems a more interesting problem at MPs. Anyway, plan the play.
Spoiler
If you take a trump finesse, it loses and a trump comes back
♥A, ruff, now trump finesse. If it wins, one more ♥. If it loses and trumps turn out be 3-1 and they don't return a trump (say I've lost to the stiff K), then ♣ ruffs. If a trump is returned and they're 3-1, I can still ruff a ♥ and test for 3-3 before settling for 4-3 ♣.
Seeking input from anyone who doesn't frequently "wtp", "Lol" or post to merely "Agree with ..."