With an additional one of my third letter I become a treat, but without that addition I am most often associated with sand and heat.

It follows a river, so close beside, and snuffs out a fire, for the light to hide.

My first word has billy, mole, and foot in common. My second is a colorful spinning toy. Together, I might be where Jack and Jill were heading towards.

Toll free, for the most part, unless in a church. Be careful when you ring to call, for you could summon Lurch. Cleanings must be done, weather can leave brass besmirched. Don’t have a cow, there’s one that’s cracked, in its center, Philly perched.

Spun around by gentle hand, A sphere of lands and seas expand. Spin or rest on an iron stand, A world of wonders at your command.