Glyfair said:
"Clothes of brass and hair of brown
Seldom need to breathe
Don't need no wings to fly
Ooh and a heart of stone
And a fear of fire and water
Who am I?"
OKay, let's take a look at a few things line by line.
"Clothes of brass" - Could mean actual clothing made of brass (such as an azer's kilt), or of a brassy color or quality (you can make cloth of gold...). It could be a reference to cladding such as you'd see on an inanimate object, such as a ship, door, or similar. It could be a reference to jewelry or other ornamantation (inlays, etc) of brass. It could well be a reference to armor. The overall connotation is being surrounded by brass in some way. It could mean whatever it is is in the City of Brass on the plane of fire.
"hair of brown" - Something, generally something loose on or near the top/exterior of whatever it is, is brown in color or quality. Actual brown hair or fur is the obvious choice. It could mean brown sails. It could mean the bristles on a broom or brush of some kind. What else is brown? Dead moss. Dead leaves. Soil. Sawdust. Rope. Certain stone. Old blood. Old rust.
"Seldom need to breathe" - First off, 'seldom' here could mean never, or it could mean does, but not often. Lack of needing to breathe could denote a certain quiescence; so something that doesn't need to do anything in order to sustain its existance, like a mountain or a boulder. Whatever it is, this thing either doesn't need to actually respirate, or it doesn't do (on its own, anyway) things that would normally cause a being to have to breathe.. activity in other words.
"don't need no wings to fly" - Actual flight is the obvious reference. Other bents could include talking about any sort of unrestricted mobility, such as swimming, or just being able to go whereever you want. It could be a reference to freedom, in form or in spirit. It could be a reference to emotional elation, such as love, faith, or joy. Being able to fly without wings, possessed of a soaring heart, is generally seen as a good thing. So either it flies, is possessed of qualities of freedom, or it's really happy about its circumstances.
"heart of stone" - This is the easy one. Either a literal core that's stone of some kind (rock, gemstone, possibly ice or metal. something hard and cold), or a reference to someone/something that's lacking in compassion in some way. Pretty self explanitory. A mountain has a heart of stone, a killer has a heart of stone, and a sword could be said to have a heart of stone because it doesn't discriminate on whom its used.
"and a fear of fire and water" - Looking at it literally, it could mean something that's actually affected negativly by those two things. Ice, paper, living beings; all fit as examples. Looking at it figurativly it could mean a fear of change, or dissolution. A fear of impermanance, or loss of self.