EDIT: Actually, this is basically just the mixed attacker with different EVs, slightly different moveset, and different items.
Hey, I made a pretty useful anti-lead T-Tar that covers a lot of todays threats, though Fear's Sashtar was a pretty good one too.
I think the item choice could be explained better because your moveset, EVs, and item all depend on each other.
Tyranitar @ Chople Berry/Focus Sash/Expert Belt
Sandstream
12 Hp/160 Atk/252 SpA/84 Spd
Rash
-Crunch/Dark Pulse
-Ice Beam
-Fire Blast
-Earthquake/Superpower
Tyranitar is probably one of the best anti-leads in the game, mainly because of his ability Sandstream, which allows him to kill many suicide leads in one clean blow. Crunch is for the ever popular Azelf leads, and also eliminates Gengar and Alakazam. Dark Pulse can be substituted for this, but witht the given EVs, Tyranitar has a higher attack stat. Both serve different purposes though; Crunch makes you seem like you have a Choice Band, while Dark Pulse makes you look like Boah, which could be very useful later in the match. Ice Beam 2HKO's the standard Hippowdon lead most of the time and helps against other bulky grounds and Aerodactyl (beware of Aerodactyl 2HKOing you though) and also hits Salamence, Zapdos, and other Dragons/Flyers. Fire Blast can 2HKO Bronzong, something that Flamethrower can't do. It also fries Scizor, Forretress, and Skarmory (who is especially likely to switch in if you used Crunch). Thunderbolt is a decent choice that can help take Gyarados out or hurt bulky waters, but beyond that its not much use. Fire Blast is a much much better option.
The last slot is up in the air. Earthquake with the given EVs is absolutely guaranteed to kill Infernape with Sandstorm, and with Chople Berry, you survive the close combat. Meanwhile, Superpower lets you 2hko Blissey (who is likely to switch in if she thinks you are Boah) and lets you outspeed and kill Tyranitar (usually CBed ones are leads, and you outspeed the standard one). Choosing Superpower means you can't take out Infernape though.
The EV spread is pretty customizable. Max SpA and Rash is necessary to give your special attacks some pop. Rash over mild because you don't want to take extra pain from Gyro Ball's, Earthquakes, and other fighting attacks. If you choose Earthquake, you can use the above EV spread (which kills infernape is he uses Close Combat right off the bat), or lower the attack to 92 EVs, which KOs Infernape if he uses fake out on you, then Close Combat. The remaining EVs can be put into HP or Spd. If you choose Superpower, you can get rid of all your attack EVs altogether (you are still going to 2hko Blissey, 1hko T-Tar) and put them into HP or Speed. If you choose Superpower, then Dark Pulse is the obvious choice. The 84 Spd EVs allow you to outrun the standard CB Tyranitar.
Chople Berry is the only choice if you choose Earthquake, since you don't want fake out ruining your sash and then getting killed by the Close Combat. If you choose Superpower however, that would mean you don't want to deal with Leadape. In that case, Focus Sash would also be useful, since it would allow you to take a big CB Earthquake from the likes of Mamoswine and KO back.