Two fouls...clear the lane?
 

Not sure about this one...could use input.

Shooter fouled on 3 point shot...shot went in.
While ball is in the air, defense fouls underneath on block out.
Neither team is in the bonus.

Shooter gets one free throw, then ball back to offense for throw-in underneath.

OK...question...

Do you clear the lane for the free throw?

There are two reasons to clear the lane:

*end of a period, or
*already determined who will get the ball after the last free throw (such as a technical or intentional foul).

I believe the latter applies to the sitch.

Shooter will shoot his free throw with the lane cleared. Team A will inbound the ball at the spot closest to where the foul occurred.

Really, there's only one reason to clear the lane, spelled out in 8-1-3:
If the ball is to become dead when the last FT for a specific penalty is not successful, players shall not occupy any spaces along the freethrow lane.