For what it's worth I would also go with the hand-wash as recommended above before trying a dry cleaner.. and as suggested, it may take 2-3 washes to loosen it all up.

I have a pair of WWI tartan breeches that took 3 washings (and is slated for a 4th soon) to get most all the 80yrs of muck, dust, and filth out of them.

But if you can salvage it, from the pics it appears that you'll have an older hvy wt A&SH kilt w/ military box pleats. Hopefully it will fit though too, hey...

Best of luck!

Christian