Hmm. Given that kind of thinking, I see another answer:

A plant ovary (fruit) - possibly one with sweet nectar. Since some fruits have four chambers, this might fit more of the clues.

[One Of My First Riddles]

Nope, and please spoiler guesses.

[Triplets]

(Adding poll.)

[Triplets]

Another solve for DudleyDude!

(I considered using ___ + AB, with "clothing" for a clue, but I thought that was too easy.)

[Here's The Catch...]

Mediterranean fair = sea the light

former jerk = past the buck

punch clock = Awl the time

slow freeze = brake the ice

[Triplets]

(And Thalia, storygirl101, one of your answers is correct.)

[Here's The Catch...]

Gmm.

Asian bow = Thai the knot

Total mass = Worth the weight

[One Of My First Riddles]

Here lies a conductor

in reverie grim,

In life, he beat me -

In the end, I beat him.

This might be pedantic, but...

The tongue doesn't actually have separate regions for four basic tastes.

[Here's The Catch...]

level measure = steady rate

Mediterranean fair = Venetian blond

slow freeze = Creeping chill

Asian bow = Chinese/Japanese noodle?

fruit slice = lemon wedge? (too literal, I think)

purchase order = climbing rank?

beyond weary = Past gone

[Here's The Catch...]

Punch clock = Smash hit

Forward women = leading ladies

[Triplets]

By and large, when you get it, you'll know (with the possible exception of the second, which may be a little obscure.

But if that's true, what's the king?

[Triplets]

1. _____ + END

2. _____ + LLIE

3. _____ + E

4. _____ + DY

Clues, in no particular order:

camoflauge, protect, room, negative

I'm going to say...

Deciduous trees lose their leaves. Are we talking about a place where bones are lost from the skeleton? That would be the human mouth, where the teeth are.

If we add grass as hair, and the four chambers as relating to the brain's ventricles...

I'm guessing a human head.

I assume this isn't a non-metaphorical con artist, like a shell game operator or something. Hmm. Maybe...

A graffiti artist or vandal (play on the word "marks")

[Constellation Point]

Well done, TheChad - that's it!

[Constellation Point]

jippiidan: Nope

plasmid: Nope

plainglazed: That almost works! It definitely hits the last verse, and it mostly works for the first. I'll count it as "correct, but not expected."

For everyone else:

"I stare from my star" is a key line. You can't stare from most of these answers - you can't stare from the moon, or a lake, or a snowflake.

[Constellation Point]

None of the above.

Miss Kitten: Close, but it doesn't work for the last verse.

[I'm not a sniper]

A guess:

Using a floss-pick to clean teeth?

[Constellation Point]

Another one that's been through a few drafts:

My star in the moonlight is white,

My star in the sunset is gold,

My star shines without making light,

My star is unpleasantly cold.

A point in a great constellation

When seen from below or afar,

At night, from a great elevation,

I stare from my star to a star.

What is my star?

(EDITED for improvements to verse and to remove dead giveaway clue.)

[I'm Not]

(Adding poll.)

On the solution:

He wanders through a castle

That is and isn't his;

He almost always is a Dane,

And almost never is.

[I'm Not]

DudleyDude has it! Well-solved!

[Somethings Fishy Here]

Very nice!

Hmm.

A wire.