My first is silent as a clam, my second is myself alone.
My whole is hidden in the sand....as still as any stone.

My first consists of level ground, my second a peevish fit.
My whole is in the courthouse bound, to prove wrong and win redress for it.

My first are some porceilan bowls in Kent, my second is that girl there.
I fall for any silly trick, and fail at every dare.

Loos-her = loser

Is that three words you want us to puzzle or just one?

Plain-tiff = plaintiff

Jonathan, I'm guessing it's three words.

Mushu already answered #2 & #3.
#1 is "mummy."

Stan Alger

Right, right, and right

My first is a bit of chinancery, my second's in the witness box
One part of bronze makes my #3, my fourth & fith is a valued rock.
I stand near something blue which is black, I've known the cross and the crescent
And this game (to my shame) WON'T help you track my name as it stands at present.

Gee.....no one even wants to hazard a guess.....?

Want a hint?

Con-stand-tin-opal ??

or, as per my original guess:

prank-rat-tin-ruby

You got it Mushu! Constantinople it is!