Many thanks for the response.
SLEEP/USE BED mentions "Thirst un-quenched!" How is that relevant to sleeping? You can't quench your thirst anywhere anyway, as you can't DRINK anything anywhere.
Your plain English clues were no help whatsover, as they only told me what I already knew. So I used the coded hints.
Oh my god! ENTER QUEUE? I wouldn't have guessed that in a million years. ENTER is a standard verb that Adventuron uses to enter another location, as you've done when entering the hole in the fence and the wizard's hut. I tried entering things in a few other locations (like the bed and the tub) and only got a standard Adventuron error response. I would never think to enter a queue. I tried JOIN/STAND/FOLLOW QUEUE, PUSH IN and various other things that I've since forgotten. Anyway, once I knew that I had to enter the queue, getting the parcel and the treasure in the game shoppe was really obvious and didn't need your clues.
Regarding the wompus, I knew that I had to hunt it (as in the old computer game 'Hunt the Wumpus'), but had no idea where to find it. I had read the plaque and the fancy words. As you use fancy words to describe numerous things in the game, I never stopped to think that it was actually important or meaningful in this particular instance. I didn't even know what photophobic meant, until I just looked it up. I had sort of assumed the opposite of photogenic, i.e. doesn't like it's photo being taken. :-) I had turned the lantern off in the forest to test which rooms were dark, but didn't get any messages at the time. I had tried SMELL and SMELL <OBJECT> on a few occasions and always got a "Doesn't work." response, so just assumed SMELL wasn't supported. But SMELL AREA? 'AREA' isn't even used anywhere in the game. Why would I think to smell that, especially when it's dark and I can't see anything and most commands are greeted by "Can't. Dark."? I had previously worked out how to FIRE CROSSBOW, but it took awhile because I was running around trying to SHOOT <OBJECT>, always to no avail. And why would I be able to shoot something in the dark? That's an extraordinary skill!
Regarding WOMPUS HUNT, HUNT is not understood (as a noun). You have to use WOMPUS, which is an adjective. These should be synonymous.
Anyway, after this guess-the-verb nightmare, I have now collected all 10 treasures and finished the game. Thanks for the hints. I would never have finished it otherwise.