Answer:
Youโll have me at night and if you remove the first letter I denote the top, such as on a train
I am always hungry, I must always be fed. The finger I lick will soon turn red.
In the evening I'm long, in the morning I'm smallอพ When seen in a ballroom, I'm nothing at all.
According to the music industry, you can count on a midnight train and the devil to turn up here.
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
People take me on walks and I run and have fun. What am I?